PRODUCTS

CYCLOMETHICONE D5

Cyclomethicone D5 is used by consumers, in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing.
Cyclomethicone D5 is used in the following products: cosmetics and personal care products, washing & cleaning products, polishes and waxes, pharmaceuticals, textile treatment products and dyes and perfumes and fragrances.
Cyclomethicone D5 is also used as part of silicone-based personal lubricants.

CAS Number: 541-02-6
EC Number: 208-764-9
Chem/IUPAC Name: Decamethylcyclopentasiloxane
Molecular Formula: C10H30O5Si5
Chemical formula: [(CH3)2SiO]5

SYNONYMS:
Decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane, Cyclopentamethicone, Cyclic dimethylsiloxane pentamer, D5, D5, 2,2,4,4,6,6,8,8,10,10-Decamethylcyclopentasiloxane, Cyclopolydimethylsiloxane, Dimethylcyclopolysiloxane, Polydimethyl siloxy cyclics, DECAMETHYLCYCLOPENTASILOXANE, 541-02-6, Cyclomethicone 5, Cyclopentasiloxane, decamethyl-, 2,2,4,4,6,6,8,8,10,10-Decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane, CYCLOPENTASILOXANE, Dimethylsiloxane pentamer, Dow corning 345, NUC silicone VS 7158, Silicon SF 1202, Ciclopentasiloxane, Cyclic dimethylsiloxane pentamer, Cyclomethicone D5, Dekamethylcyklopentasiloxan, Ddecamethylcyclopentasiloxane, D5-sil, KF 995, CCRIS 1328, VS 7158, HSDB 5683, UNII-0THT5PCI0R, 0THT5PCI0R, EINECS 208-764-9, SF 1202, BRN 1800166, DTXSID1027184, JEESILC CPS-211, XIAMETER PMX-0245, DTXCID907184, CYCLOPENTASILOXANE (D5), D5, EC 208-764-9, 4-04-00-04128 (Beilstein Handbook Reference), KF-995, DOW CORNING ST CYCLOMETHICONE 5, OCTAMETHYLCYCLOTETRASILOXANE (D5), KP-545 COMPONENT CYCLOMETHICONE 5, 2,2,4,4,6,6,8,8,10,10-decamethyl-1,3,5,7,9,2,4,6,8,10-pentoxapentasilecane, Cyclopentasiloxane, 2,2,4,4,6,6,8,8,10,10-decamethyl-, CYCLOMETHICONE 5 (USP-RS), CYCLOMETHICONE 5 [USP-RS], MFCD00046966, Dekamethylcyklopentasiloxan [Czech], decamethyl cyclopentasiloxane, C10H30O5Si5, Lightening Serum, D5 Cyclomethicone, dimethylcyclopentasiloxane, Decamethylcylopentasiloxane, UNII: 0THT5PCI0R, SCHEMBL28497, N-Propylheptamethyltrisiloxane, CHEMBL1885178, 3CE PINK IM GOOD MASCARA, CHEBI:191092, Decamethylcyclopentasiloxane, 97%, CYCLOMETHICONE 5 [WHO-DD], BCP15826, Tox21_303170, CD3770, CYCLOPENTASILOXANE, DECAMETHYL, AKOS008901199, CS-W009767, DB11244, HY-W009051, DECAMETHYLCYCLOPENTASILOXANE [MI], NCGC00163981-01, NCGC00257224-01, AS-59731, CAS-541-02-6, DA-72620, DECAMETHYLCYCLOPENTASILOXANE [HSDB], D1890, D3770, Decamethylcyclopentasiloxane (cyclic monomer), NS00043162, D78203, S05475, Decamethylcyclopentasiloxane, analytical standard, Q414350, decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane, Cyclomethicone 5, United States Pharmacopeia (USP) Reference Standard, 2,2,4,4,6,6,8,8,10,10-Decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane #, D5 Cyclomethicone, Pharmaceutical Secondary Standard; Certified Reference Material, Cyclopentasiloxane, Decamethylcyclopentasiloxane, D5 Silicone, D5 Fluid, Silicone D5, Volatile Silicone D5, Pentacyclosiloxane, Cyclomethicone Pentamer, DECAMETHYLCYCLOPENTASILOXANE, 541-02-6, Cyclopentasiloxane, decamethyl-, Cyclomethicone 5, 2,2,4,4,6,6,8,8,10,10-Decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane, CYCLOPENTASILOXANE, Dimethylsiloxane pentamer, Dekamethylcyklopentasiloxan, Dow corning 345, NUC silicone VS 7158, Silicon SF 1202, Ciclopentasiloxane, Cyclic dimethylsiloxane pentamer, Cyclomethicone D5, D5-sil, KF 995, CCRIS 1328, VS 7158, HSDB 5683, UNII-0THT5PCI0R, 0THT5PCI0R, EINECS 208-764-9, SF 1202, BRN 1800166, DTXSID1027184, JEESILC CPS-211, XIAMETER PMX-0245, DTXCID907184, CYCLOPENTASILOXANE (D5), D5, EC 208-764-91, 4-04-00-04128 (Beilstein Handbook Reference), KF-995, DOW CORNING ST CYCLOMETHICONE 5, OCTAMETHYLCYCLOTETRASILOXANE (D5), KP-545 COMPONENT CYCLOMETHICONE 5, 2,2,4,4,6,6,8,8,10,10-decamethyl-1,3,5,7,9,2,4,6,8,10-pentoxapentasilecane, Cyclopentasiloxane, 2,2,4,4,6,6,8,8,10,10-decamethyl-, CYCLOMETHICONE 5 (USP-RS), CYCLOMETHICONE 5 [USP-RS], MFCD00046966, Dekamethylcyklopentasiloxan [Czech], Ddecamethylcyclopentasiloxane, decamethyl cyclopentasiloxane, C10H30O5Si5, Lightening Serum, D5 Cyclomethicone, dimethylcyclopentasiloxane, Decamethylcylopentasiloxane, UNII: 0THT5PCI0R, SCHEMBL28497, N-Propylheptamethyltrisiloxane, CHEMBL1885178, CYCLOPENTASILOXANE [INCI], 3CE PINK IM GOOD MASCARA, CHEBI:191092, Decamethylcyclopentasiloxane, 97%, CYCLOMETHICONE 5 [WHO-DD], BCP15826, Tox21_303170, CD3770, CYCLOPENTASILOXANE, DECAMETHYL, AKOS008901199, CS-W009767, DB11244, HY-W009051, DECAMETHYLCYCLOPENTASILOXANE [MI], NCGC00163981-01, NCGC00257224-01, AS-59731, CAS-541-02-6, DECAMETHYLCYCLOPENTASILOXANE [HSDB], D1890, D3770, Decamethylcyclopentasiloxane (cyclic monomer), NS00043162, D78203, S05475, Decamethylcyclopentasiloxane, analytical standard, Q414350, decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane, Cyclomethicone 5, United States Pharmacopeia (USP) Reference Standard, 2,2,4,4,6,6,8,8,10,10-Decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane #, D5 Cyclomethicone, Decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane, Cyclopentamethicone, Cyclic dimethylsiloxane pentamer, D5, D5, 2,2,4,4,6,6,8,8,10,10-Decamethylcyclopentasiloxane, 2,2,4,4,6,6,8,8,10,10-DECAMETHYL-1,3,5,7,9,2,4,6,8,10-PENTOXAPENTASILOXANE, CYCLOMETHICONE, 5, CYCLOMETHICONE 5 [USP - RS], CYCLOMETHICONE 5 [WHO-DD], CYCLOPENTASILOXANE, CYCLOPENTASILOXANE (D5), CYCLOPENTASILOXANE [INCI], CYCLOPENTASILOXANE, DECAMETHYL-, D5, DECAMETHYLCYCLOPENTASILOXANE, DECAMETHYLCYCLOPENTASILOXANE [HSDB], LCYCLOPENTASILOXANE [MI], DOW CORNING ST CYCLOMETHICONE 5, DOW CORNING UP-1002 ULTRA PURE FLUID, JEESILC CPS -211, KF-995, KP-545 COMPONENT CYCLOMETHICONE 5, OCTAMETHYLCYCLOTETRASILOXANE (D5), XIAMETER PMX-0245, Cyclopentasiloxane, Decamethyl-, Cyclopentasiloxane, Cyclomethicone5, D5 Cyclomethicone, Decamethylcyclopentasiloxan, Decamethylcylopentasiloxane, Cyclopentasiloxane, Decamethylcyclopentasiloxane, D5 Silicone, D5 Siloxane, Cyclopentasiloxane, decamethyl-, DecaMethylcyclopentasiloxane, 2,2,4,4,6,6,8,8,10,10-decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane, D5 Cyclomethicone, Decamethylcyclopentasiloxane, Dimethylsiloxane pentamer, Dekamethylcyklopentasiloxan, CD3770, D3770, Decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane, Cyclopentamethicone, Cyclic dimethylsiloxane pentamer, D5, 2,2,4,4,6,6,8,8,10,10-Decamethylcyclopentasiloxane, Cyclopolydimethylsiloxane, Dimethylcyclopolysiloxane, Polydimethyl siloxy cyclics,

Cyclomethicone D5 is an organosilicon compound with the formula [(CH3)2SiO]5.
Cyclomethicone D5 is a colorless and odorless liquid that is slightly volatile.
Cyclomethicone D5 is a volatile polydimethylcyclosiloxane composed mainly of cyclopentasiloxane.

Cyclomethicone D5 is clear, tasteless, essentially odorless, non-greasy and non-stinging.
Cyclomethicone D5 is a cyclic siloxane, that has a silicon-oxygen bond in a cyclic arrangement and methyl groups attached with the silicon atom.
Cyclomethicone D5 is a staple ingredient used in cosmetics.

Cyclomethicone D5 is a non-greasy silicone that is colorless, odorless, and water-thin.
This water-like liquid, Cyclomethicone D5, is synthetically manufactured but is derived from naturally occurring oxygen and silicones.
Cyclomethicone D5 encompasses within itself the family of cyclic dimethyl siloxanes.

Cyclomethicone D5 is a volatile, cyclic (circular) silicone fluid that has a lightning fast dry-time, making it the ideal carrier for fragrances because it instantly evaporates, leaving nothing behind but your chosen scent.
Cyclomethicone D5 will reduce the greasy feel of heavy emollients such as Shea Butter, makes an excellent emollient for "oil free" moisturizers, and offers light conditioning as well as improved dry and wet combout in hair care.

Cyclomethicone D5 can also be used to adjust the viscosity of products to make them thinner or thicker.
Cyclomethicone D5 is a silicone regularly used in cosmetic products.
Cyclomethicone D5’s commonly found in medical implants, sealants, lubricants, and windshield coatings.

Cyclomethicone D5 is colorless, odorless, non-greasy, and water-thin.
Cyclomethicone D5 doesn’t get absorbed into the skin.
Rather, Cyclomethicone D5 evaporates quickly away from it.

This property makes Cyclomethicone D5 a useful ingredient in cosmetic products that need to dry quickly, like antiperspirants and hair sprays.
Cyclomethicone D5 also has lubricating properties.
This gives a slippery and silky feeling when applied to the skin and hair and allows the product to spread more easily.

Cyclomethicone D5 is a volatile polydimethylcyclosiloxane that is composed of Decamethylcyclopentasiloxane (CAS#541-02-6).
Cyclomethicone D5 is clear, tasteless, essentially odorless, non-greasy and non-stinging.
Cyclomethicone D5 is synthetically manufactured but is derived from naturally occurring oxygen and silicones.

Cyclomethicone D5 encompasses within itself the family of cyclic dimethyl siloxanes.
Cyclomethicone D5 is an organosilicon compound.
Cyclomethicone D5 is member of cyclomethicone, which are a group of liquid methyl siloxanes that have low viscosity and high volatility.

Cyclomethicones are cyclic in structure with a monomer backbone of one silicon and two oxygen atoms bonded together.
Cyclomethicone D5 is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 10 000 to < 100 000 tonnes per annum.

Cyclomethicone D5 is not one type of silicone, but a whole mixture of them: it's a mix of specific chain length (4 to 7) cyclic structured silicone molecules.
(There seems to be a confusion on the internet whether Cyclomethicone D5 and Cyclopentasiloxane are the same.

They are not the same, but Cyclopentasiloxane is part of the mixture that makes up Cyclomethicone).
All the silicones in the Cyclomethicone mixture are volatile, meaning they evaporate from the skin or hair rather than stay on it.
This means that Cyclomethicone D5 has a light skin feel with none-to-minimal after-feel.

Cyclomethicone D5 also makes the formulas easy to spread and has nice emollient properties.
Cyclomethicone D5 is an ingredient found in hundreds of personal care products.
Cyclomethicone D5 improves the texture of formulations, giving them a smooth and silky feel.

Cyclomethicone D5, also known as decamethylcyclopentasiloxane or D5, is part of the cyclomethicone family of silicones.
Cyclomethicone D5 is a clear, odorless, thin liquid that a person may find in many skincare and cosmetic products.
Although it offers minimal benefits to the skin, manufacturers add Cyclomethicone D5 to a vast range of products to improve their feel, delivery, and function.

Cyclomethicone D5 is an organosilicon compound.
Cyclomethicone D5 is member of cyclomethicone, which are a group of liquid methyl siloxanes that have low viscosity and high volatility.
Cyclomethicone D5 is cyclic in structure with a monomer backbone of one silicon and two oxygen atoms bonded together.

Cyclomethicone D5 is used in cosmetic and personal products as a skin emollient.
Cyclomethicone D5 is a lightweight silicone.
Cyclomethicone D5 can evaporate quickly

Cyclomethicone D5 is suitable for use in cosmetics to help bring active substances into the skin.
And Cyclomethicone D5 can be used to mix hair care products
Cyclomethicone D5 is used to act as a conditioner on the hair.

Cyclomethicone D5 has a special feature that is not sticky.
And Cyclomethicone D5 feels silky soft when used on skin or hair.
Cyclomethicone D5 is a clear, odorless, silicone-based oil that is incredibly useful and versatile in bath and body recipes.

This is a direct replacement for Cyclomethicone D5.
This water-like liquid, Cyclomethicone D5, is synthetically manufactured but is derived from naturally occurring oxygen and silicones.
Cyclomethicone D5 encompasses within itself the family of cyclic dimethyl siloxanes.

Cyclomethicone D5 is a staple ingredient used in cosmetics.
The chemical formula for Cyclopentasiloxane is C10H30O5Si5.
Cyclomethicone D5 is a non-greasy silicone that is colorless, odorless, and water-thin.

Cyclomethicone D5 gets quickly evaporated from the skin rather than getting absorbed - making it a brilliant ingredient to be used in products that need to dry fast, like antiperspirants and hair sprays.
Further, Cyclomethicone D5 also has lubricating properties and feels silky smooth when applied to hair and skin.

Cyclomethicone D5 is cyclopentasiloxane.
Cyclomethicone D5 is nontoxic, odorless, colorless and tasteless.
Cyclomethicone D5 has a good compatibility with lots of cosmetic ingredients, with the benefits of bright, smooth, non-grease.

Cyclomethicone D5 is a clear, odorless, silicone-based oil that is incredibly useful and versatile in bath and body recipes.
Perfect as a carrier, Cyclomethicone D5 can provide a silky and soft feel to your products, and can improve dispersement qualities of fragrance oils.
Cyclomethicone D5 is perfect for antiperspirants, deodorants, hair care, skin care and perfumes.

Cyclomethicone D5 also works well as a room spray base, simply add your fragrance at 5-20% dependent on the IFRA recommendation.
Cyclomethicone D5's volatility, excellent spreading and lubrication qualities make it an ideal carrier for other ingredients and excellent light conditioners for hair and skin.

Non-greasy, Cyclomethicone D5 leaves no oily residue or build-up and imparts a soft silky feel to skin.
Cyclomethicone D5 , also known as D5, is an organosilicon compound with the formula [(CH₃)₂SiO]₅.
Cyclomethicone D5 is a colorless and odorless liquid that is slightly volatile.

Cyclomethicone D5 is classified as cyclomethicone.
Commercially Cyclomethicone D5 is produced from dimethyldichlorosilane.
Hydrolysis of the dichloride produces a mixture of cyclic dimethyl siloxanes and polydimethylsiloxane.

The cyclic siloxanes, including Cyclomethicone D5, can be removed from this mixture by distillation.
In the presence of a strong base such as KOH, the polymer/ring mixture is equilibrated, allowing complete conversion to the more volatile cyclic siloxanes.
Cyclomethicone D5 is a silicone-based compound that is in the form of a clear, odorless liquid.

Cyclomethicone D5 is responsible for giving a silky texture to the skin or hair, and also aids the spreadability of the product.
Cyclomethicone D5 works really well with the other ingredients in a formulation and helps stabilize the product.
Cyclomethicone D5 can not only improve the texture of the surface that it is applied on, but also the texture of the product itself.

The chemical formula of Cyclomethicone D5 is C10H30O5Si5.
Cyclomethicone D5 is a generic name for several cyclic substances derived from silica (sand is a silica).
Silicones have special fluid properties that provide an excellent balance for slip and silky touch on the skin and impart emollience and are a water-binding agent that holds up well, even when skin becomes wet.

Cyclomethicone D5 is a staple ingredient used in cosmetics.
Cyclomethicone D5 is a non-greasy silicone that is colorless, odorless, and water-thin.
This water-like liquid, Cyclomethicone D5, is synthetically manufactured but is derived from naturally occurring oxygen and silicones.

Cyclomethicone D5 encompasses within itself the family of cyclic dimethyl siloxanes.
Cyclomethicone D5 is a low-viscosity fluid with relatively high volatility.
Non-polar and insoluble in water, Cyclomethicone D5 is completely miscible in lower alcohols and other typical solvents.

Cyclomethicone D5 is a volatile carrier compatible with a wide range of cosmetic ingredients and has low surface tension.
Cyclomethicone D5 is a volatile silicone oil used in hair and skincare products to impart skin conditioning, emolliency, shine and/or silkiness; to reduce the greasy feel of tanning oils; promotes easy spreadability, and leaves a soft, silky smooth feel to the skin.

Cyclomethicone D5’s chemical structure allows for easy application across the skin while reducing pore entry and skin stickiness.
Cyclomethicone D5's structure limits its ability to penetrate through the dermis layer, which means the molecules mingle with dry skin before evaporating quickly.

Cyclomethicone D5 has many uses in skin lotions, fragrances, and hair conditioners.
Cyclomethicone D5 is non-polar and insoluble in water
Cyclomethicone D5 imparts a soft, velvety feel to the skin, has excellent spreading, leaves no oily residue or build-up, and is non-greasy.

USES and APPLICATIONS of CYCLOMETHICONE D5:
Cyclomethicone D5 is used a base fluid in a number of personal care products, with excellent spreading, easy rub-out and lubrication
properties together with unique volatility characteristics.
Cyclomethicone D5 can be used in antiperspirants, deodorants, skin creams, lotions, bath oils, suntan and shaving products,
make-up, nail polishes.

In sticks, Cyclomethicone D5 has the right balance between volatility and spreading.
Cyclomethicone D5 is a volatile fluid with appreciable vapor pressure at ambient temperature.
Cyclomethicone D5 is classified as a cyclomethicone.

Such fluids are commonly used in cosmetics, such as deodorants, sunblocks, hair sprays and skin care products.
Cyclomethicone D5 is becoming more common in hair conditioners, as it makes the hair easier to brush without breakage.
Cyclomethicone D5 is also used as part of silicone-based personal lubricants.

Cyclomethicone D5 is considered an emollient.
Cyclomethicone D5 has also been tried as a dry-cleaning solvent in the early 2000s.
Cyclomethicone D5 was marketed as a more environmentally friendly solvent than tetrachloroethylene (the most common dry-cleaning solvent worldwide) despite being controlled in the EU for to its persistent, bioaccumulative and toxic characteristics.

Due to their volatility (varying rates of evaporation), low surface tensions (high Spreadability), and non-greasy feel, Cyclomethicone D5 is used as base fluids, carrying agents and wetting agents in a wide range of personal care products.
Cosmetic applications of Cyclomethicone D5 include: room sprays, body sprays, antiperspirants, skin creams, skin lotions, suntan lotions, bath oils, hair care products etc. see also Cosmetic Grade Silicones

In addition, Cyclomethicone D5 is being used as a Federal VOC Exempt cleaning agent in dry cleaning applications.
Cyclomethicone D5 serves to act as a carrying agent for the detergent and will not degrade the fabric or colors of the linens and clothing like other stronger solvents.

Cyclomethicone D5 may be used as a pharmaceutical reference standard for the determination of the analyte in personal care formulations by gas chromatography.
Cyclomethicone D5 is used in the production of some silicon-based polymers that are widely used in various personal care products.

Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.
Application of Cyclomethicone D5: In creams, lotions, hair sprays, cleansing creams, skin creams, lotions, stick products, bath oils, shaving products, etc.

Other release to the environment of Cyclomethicone D5 is likely to occur from: indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners), outdoor use, indoor use in close systems with minimal release (e.g. cooling liquids in refrigerators, oil-based electric heaters) and outdoor use in close systems with minimal release (e.g. hydraulic liquids in automotive suspension, lubricants in motor oil and break fluids).

Release to the environment of Cyclomethicone D5 can occur from industrial use: industrial abrasion processing with low release rate (e.g. cutting of textile, cutting, machining or grinding of metal) and of articles where the substances are not intended to be released and where the conditions of use do not promote release.

Other release to the environment of Cyclomethicone D5 is likely to occur from: outdoor use in long-life materials with low release rate (e.g. metal, wooden and plastic construction and building materials) and indoor use in long-life materials with low release rate (e.g. flooring, furniture, toys, construction materials, curtains, foot-wear, leather products, paper and cardboard products, electronic equipment).

Cyclomethicone D5 can be found in complex articles, with no release intended: vehicles.
Cyclomethicone D5 is used in the following products: washing & cleaning products, polishes and waxes, cosmetics and personal care products and coating products.

Cyclomethicone D5 is used in the following areas: formulation of mixtures and/or re-packaging, building & construction work and health services.
Cyclomethicone D5 is used for the manufacture of: and textile, leather or fur.
Cyclomethicone D5 is used for the manufacture of: chemicals, textile, leather or fur and electrical, electronic and optical equipment.

Other release to the environment of Cyclomethicone D5 is likely to occur from: indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners), outdoor use and indoor use in close systems with minimal release (e.g. cooling liquids in refrigerators, oil-based electric heaters).

Cyclomethicone D5 is used in the following products: cosmetics and personal care products, polishes and waxes, washing & cleaning products, pharmaceuticals, coating products and textile treatment products and dyes.
Release to the environment of Cyclomethicone D5 can occur from industrial use: formulation of mixtures and formulation in materials.

Cyclomethicone D5 is used in the following products: washing & cleaning products, polymers, laboratory chemicals, polishes and waxes, cosmetics and personal care products and textile treatment products and dyes.
Cyclomethicone D5 is used in the following areas: scientific research and development and building & construction work.

Release to the environment of Cyclomethicone D5 can occur from industrial use: in processing aids at industrial sites, as an intermediate step in further manufacturing of another substance (use of intermediates), for thermoplastic manufacture, as processing aid, of substances in closed systems with minimal release and in the production of articles.

Release to the environment of Cyclomethicone D5 can occur from industrial use: manufacturing of the substance.
Applications of Cyclomethicone D5: Antiperspirants, Skin Care Products, Sunscreen Products, Hair Conditioners, Facial Make-Up, and Particle Treatment.
Cyclomethicone D5 is used in cosmetic and personal products as a skin emollient.

Cyclomethicone D5, often referred to as D5, is a clear, odorless, and lightweight silicone-based compound widely used in the cosmetics and personal care industry.
Cyclomethicone D5 belongs to a larger class of silicones known as cyclomethicones.

Cyclomethicone D5 is valued for its unique properties that make it an excellent ingredient in various formulations.
Cyclomethicone D5 has numerous applications in the personal care and cosmetics industry, primarily due to its unique properties:
Cyclomethicone D5 is an excellent solvent for a wide range of ingredients commonly used in cosmetics and personal care products.

Cyclomethicone D5 can dissolve various active ingredients, including vitamins, botanical extracts, and other performance-enhancing agents, ensuring they are evenly distributed throughout the formulation.
Cyclomethicone D5 is commonly used in personal care products such as deodorants, lotions, hair sprays, and makeup.

Cyclomethicone D5 provides a silky and smooth feel to formulations.
Cyclomethicone D5 acts as a carrier or dispersing agent for active ingredients.
Typical use level of Cyclomethicone D5 1-10% (up to 50% possible), add to oil phase of formulas but do not heat over 50°C (125°F).

Cyclomethicone D5 can also be mixed into emulsions after the temperature drops to 50°C (125°F).
Cyclomethicone D5 is used for external use only.
Cyclomethicone D5 is used Color cosmetics, creams, deodorants, sticks, hair care products.

The primary function of Cyclomethicone D5 is to work as an emollient.
Cyclomethicone D5 can also give products a silky feel, which allows them to glide smoothly and deliver any active ingredients to the body evenly.
Manufacturers also use Cyclomethicone D5 as a solvent to help deliver active ingredients in a product to the skin or hair.

However, unlike other silicones, Cyclomethicone D5 is volatile, which means that it quickly evaporates and dries when applied to the skin.
Cyclomethicone D5 forms a protective barrier on the skin and hair, which is why many companies use it in antifrizz and detangling products.
Cyclomethicone D5 is also water-resistant.

This is why companies commonly use Cyclomethicone D5 in sealants and windshield coatings.
Perfect as a carrier, Cyclomethicone D5 can provide a silky and soft feel to your products, and can improve dispersement qualities of fragrance oils.
Cyclomethicone D5 is perfect for antiperspirants, deodorants, hair care, skin care and perfumes.

Cyclomethicone D5 also works well as a room spray base, simply add your fragrance at 5-20% dependent on the IFRA recommendation.
Cyclomethicone D5 can be widely used in various of personal care products including antiperspirants, skin, sun care, hair conditioners, color cosmetics and particle/pigment treatment.

Cyclomethicone D5 can be used in personal care products including antiperspirants, skin, sun care, hair conditioners, color cosmetics and particle/pigment treatment, etc.
Cyclomethicone D5 is a volatile, cyclic (circular) silicone fluid that has a lightning fast dry-time, making it the ideal carrier for fragrances because it instantly evaporates, leaving nothing behind but your chosen scent.

Cyclomethicone D5 will reduce the greasy feel of heavy emollients such as Shea Butter, makes an excellent emollient for "oil free" moisturizers, and offers light conditioning as well as improved dry and wet combout in hair care.
Cyclomethicone D5 can also be used to adjust the viscosity of products to make them thinner or thicker.

Application of Cyclomethicone D5: In creams, lotions, hair sprays, cleansing creams, skin creams, lotions, stick products, bath oils, shaving products, etc.
In personal care applications, Cyclomethicone D5 is often used as a carrier that evaporates without residue while providing lubricity and detackification.
Cyclomethicone D5 has a drier finish than Dimethicone.

Cyclomethicone D5 is used in hair care applications like conditioners since it leaves no oily residue or build-up.
Cyclomethicone D5 is also used in skin care applications such as lotions and creams, with a typical use level of 1-25%.
Cyclomethicone D5 is a category of cyclic dimethyl polysiloxane compounds commonly used in cosmetics and personal care products for their multi-functional properties.

-Use of Cyclomethicone in Cosmetics and Personal Care: Cyclomethicone D5 is a clear, odorless silicone that evaporates quickly when applied to the skin, leaving a silky-smooth feel.
Cyclomethicone D5 is a type of silicone that is used in skin care products as a conditioner, lubricant and solvent.

Cyclomethicone D5's watery consistency makes it easily spreadable. It adds a silky, slippery feeling to products and also and acts a mild water repellent by forming a protective barrier on the skin.

In anti-aging formulas, Cyclomethicone D5 can also fill in some of the fine lines and wrinkles (think drywall filler) giving the face a more plump look — albeit temporary.
The ‘slippery’ characteristic makes a great addition to hair products, especially conditioners.

Cyclomethicone D5 also evaporates quickly, which makes it ideal for helping to deliver other ingredients to the skin and hair in products such as hand lotion and foundation.

Cyclomethicone D5 may cause mild skin and eye irritation and a small percentage of it seems to penetrate the skin.
While Cyclomethicone D5 isn’t toxic to the human body, there are concerns about its environmental impact.

-Recommended fragrance content in products with cyclopentasiloxane:
Fragrances - Recommended use levels 0.5 – 3%.
Antiperspirants - Recommended use levels 3 – 10%.
Skin Care Products - Recommended use levels 3 – 10%.
Hair Conditioners - Recommended use levels 1 – 5%.
Room and Linen Mists - Recommended use levels 3 – 5%.
For example, when making room mists use per 100g of cyclopentasiloxane and 3g to 5g of fragrance, the total amount of final product will be 103g to 105g.

-Use of Cyclomethicone D5 in Personal Care Products:
A few key, unusual functional attributes make silicone a “must-have” in a personal care formulation.
These include:

*Silicones have better surface tension reduction than that obtained with organic surfactants and, at much lower concentrations, as well as the capability of foaming associative films upon dry-down.

*Given the presence of the silicone moiety, these materials have expanded emulsification properties beyond those of the organic surfactants.
*They also have foaming ability in both aqueous and nonaqueous environments.

-The capability to disperse pigments:
An ability to generate a desirable, unusual sensory/aesthetic silky feel.
Cyclomethicone D5 is commonly used in cosmetic products to provide a solvent that feels dry on the skin.

Key areas where this family of materials is used include antiperspirants, color cosmetics, and as a base solvent to blend with fragrance and perfume oils.
These are commonly used in cosmetics, such as deodorants, sunblocks, hair sprays, and skin care products.

Cyclomethicone D5 is becoming more common in hair conditioners, as it makes the hair easier to brush without breakage.
Cyclomethicone D5 is also used as part of silicone-based personal lubricants.
Cyclomethicone D5 is also considered an emollient.

-Applications of Cyclomethicone D5 in Personal Care:
The cyclic silicones have a dry feel when applied to the skin for two main reasons.
First, they can lower the surface tension of the formulation, containing oil and thereby leading to a drier-feeling product since they are surface active in oils.

Second, since the cyclics are so volatile, they evaporate rapidly when exposed to the skin’s temperature.
There are several cosmetic applications in which a dry skin feel is essential.
These include antiperspirants, skin serums, and sun-care products.

Cyclomethicone D5 protects the hair from the elements, keeping it smooth and shiny.
Dry and damaged hair feels healthy by filling in the porosity and providing nourishing conditioning benefits.

With improved compatibility on wet and dry hair and anti-static property with less build-up effect, Cyclomethicone D5 is a good choice for hair shampoo, rinse-off conditioner, and leave-in treatment.
In short, silicones can play significant roles in shampoos, conditioners, colorants, or styling products.

-Cyclomethicone D5 is used in a variety of products.
From a commercial view, most importantly, they have been used in antiperspirant formulations because they:
*Impart a soft-silky feel to the skin
*Provide excellent spreading
*Leave no oily residue or buildup
*De-tackify formulations
*Are non-greasy
*Are compatible with a wide range of cosmetic ingredients
*Lower surface tension and
*Provide transient emollience on the skin.

-A person may find Cyclomethicone D5 in a wide range of personal care and cosmetic products, such as: sunscreen, antiperspirant, deodorant, hair spray, shampoo, conditioner, antifrizz products, anti-hair-breakage products, hair-detangling products, pomade, makeup, makeup remover, and night cream.

-Cyclomethicone D5 for hair care:
Cyclomethicone D5 is widely used in the formulation of conditioners, shampoos, styling products, etc.
Cyclomethicone D5 adds shine, softness, and manageability to hair by reducing friction and preventing tangles.

Cyclomethicone D5 also helps to seal the hair cuticle, protecting it from damage.
When used in styling products, Cyclomethicone D5 helps to control frizz, add volume, and provide heat protection for hair during styling.

-Cyclomethicone D5 in skin care:
*Moisturizers and Lotions:
Cyclomethicone D5 acts as an emollient, providing a smooth and silky feel to the skin, while also helping to spread and deliver other active ingredients.

*Sunscreens:
Due to its water-resistant properties, Cyclomethicone D5 helps create a barrier on the skin, enhancing the effectiveness of sunscreen formulations.

*Anti-aging Products:
Cyclomethicone D5 can improve the texture and appearance of the skin, reducing the appearance of fine lines and wrinkles.

BENEFITS OF CYCLOMETHICONE D5:
 Imparts soft silky feel to the skin
 Excellent spreading
 Leaves no oily residue or build up
 Detackification
 Non-greasy

FUNCTIONS OF CYCLOMETHICONE D5:
*Emollient,
*hair conditioner,
*skin care agent,
*solvent.

WHAT IS CYCLOMETHICONE D5 USED FOR?
What is it used for?
Cyclomethicone D5 is known for being able to evaporate and dry quickly.
Silicones are also known to repel water and glide easily.

This is why they are commonly used as ingredients in lubricants and sealants.
They are also known to form a protective barrier on the skin and hair.
This can help you detangle your hair, prevent breakage, and reduce frizz.

Cyclomethicone D5 can be found in a wide range of personal care products.
Examples include:
*hair spray
*sunscreen
*antiperspirant
*deodorant
*hair conditioner
*shampoo
*hair detangling products
*waterproof mascara
*foundation
*eyeliner
*concealer
*moisturizer with SPF
*eye shadow
*hairstyling gel and lotion
*lipstick

It sometimes appears on a label as Cyclomethicone D5 or D5.
Cyclomethicone D5 may also be put under the broader category name of cyclomethicone.
Cyclomethicone D5’s different from another siloxane known as dimethicone or polydimethylsiloxane (PDMS).

CYCLOMETHICONE D5 IN COSMETICS: IS CYCLOMETHICONE D5 SAFE?
Cosmetic use
Cyclomethicone D5 can be frustrating to decipher the long chemical names on the label of your favorite cosmetic products.
Simple ingredients like water and alcohol are easy to recognize.
But lengthy chemical names can leave even the most conscious consumers scratching their heads.

WHERE TO FIND CYCLOMETHICONE D5?
CC creams, concealers, foundations, eyelid bases, hair oils, face creams, lotions, lipsticks, deodorants, sunscreens, hair serums, antiperspirants, blushes, face masks, lip glosses, mascaras, shampoos, conditioners, make-up removers, hand creams.

FEATURES OF CYCLOMETHICONE D5:
 Volatile carrier
 Compatible with a wide range of cosmetic ingredients
 Low surface tension

SPECIFICATIONS OF CYCLOMETHICONE D5:
Clear colorless liquid
characteristic odor
insoluble in water / alcohol
store tightly sealed, protected from heat and moisture
shelf life of 36 months when properly stored / handled

BENEFITS OF CYCLOMETHICONE D5:
No Oily Residue
Improves Efficacy of Antiperspirants
Dry, Non-Greasy Feel
Improves Wet Combing
Greater Flexibility in Formulating Cosmetic Products

WHAT IS CYCLOMETHICONE D5 USED FOR?
Because of its many enriching properties, Cyclomethicone D5 is a common ingredient used in a variety of hair and skin care products.
Cyclomethicone D5 helps the products spread more evenly and dry quickly, thus providing all the benefits without weighing the skin or hair down.
Cyclomethicone D5 also gives cosmetic products a silky texture.

Skin care:
The hydrating properties of Cyclomethicone D5 are great for the skin as it traps moisture, making the skin smooth and soft.
Cyclomethicone D5 is used in lightweight products as it does not penetrate the skin but rather evaporates quickly.
Further, Cyclomethicone D5 skin care has anti-aging properties and is a great ingredient to be used in lotions

Hair care:
Cyclomethicone D5 is a great conditioner for hair because of its lubricating properties.
Cyclomethicone D5 is commonly used in shampoos, hair conditioners, hair sprays, anti-frizz, and hair detangling products.
Cyclomethicone D5 forms a layer on the hair, protecting and preventing it from damage while also allowing the product to spread easily and evenly

Cosmetic products:
Cyclomethicone D5 is used in makeup and makeup removers because it is non-comedogenic and does not block pores

ORIGIN OF CYCLOMETHICONE D5:
Cyclomethicone D5, a synthetic substance, is made up of silicone and oxygen.
Sometimes, elements like hydrogen and carbon are also used.
They are all natural substances, but Cyclomethicone D5 undergoes chemical processing before it is used in cosmetic and skincare products.

WHAT DOES CYCLOMETHICONE D5 DO IN A FORMULATION?
*Emollient
*Hair conditioning
*Skin conditioning

SAFETY PROFILE OF CYCLOMETHICONE D5:
Cyclomethicone D5 is a safe ingredient and has no known side effects.
However, a patch test is recommended before use in case of very sensitive and allergic skin.
Even if accidentally inhaled, Cyclomethicone D5 is excreted out and does not accumulate in the body to cause any danger.

Moreover, Cyclomethicone D5 is environmentally friendly and halal.
It is a common misconception that Cyclomethicone D5 clogs pores, but this ingredient is non-comedogenic as it does not enter the pores and evaporates quickly.

ALTERNATIVES OF CYCLOMETHICONE D5:
*DICAPRYLYL ETHER,
*DICAPRYLYL CARBONATE

PROPERTIES OF CYCLOMETHICONE D5:
*Low surface tension, enhances spreadability.
*Non-greasy and non-occlusive.
*Provides a soft, silky, and non-tacky finish.
*Excellent solvent for other silicone-based ingredients.

BENEFITS OF CYCLOMETHICONE D5:
*Enhances skin feel and texture in cosmetics.
*Allows for lightweight and easy-to-apply formulations.
*Compatible with a wide range of other cosmetic ingredients.
*Leaves no residue after evaporation, ensuring a clean finish.

KEY FEATURES AND TYPICAL BENEFITS OF CYCLOMETHICONE D5:
Silicones differ from organic compounds in both their physical and chemical properties.
*Volatility
*Spreadability
*Lubricity
*Compatible with many organic materials, solvents
*Low surface tension and viscosity
*No oily residue
*Improves efficacy of antiperspirants
*Dry non-greasy feel
*Improves wet combing
*Greater flexibility in formulating cosmetic products
*Rapid and complete coating during particle treatment

BENEFITS AND USES OF CYCLOMETHICONE D5:
Cyclomethicone D5 is preferred for its conditioning, viscosity controlling, and water-repelling properties.
Cyclomethicone D5 is an excellent solvent and can be found in countless products.

Cyclomethicone D5 is documented to be an anti-static agent, non-greasy, non-sticky, and is acclaimed for giving a slippery feel and a dry non-cooling sensation on evaporation.
Cyclomethicone D5 evaporates quickly and does not leave behind any residue.

This commands application of Cyclomethicone D5 in formulating deodorants and antiperspirants.
Cyclomethicone D5 makes spreading products a breeze because of its unique fluidity.
Cyclomethicone D5 provides stability to the formulation and prevents it from splitting.

Cyclomethicone D5 is used to deposit active ingredients on the skin and hair, thereby enhancing the efficacy of the formulation.
Cyclomethicone D5 is used in serums, lotions, hair sprays, face and body mists, sunscreens, non-sticky oils, etc.

HOW CYCLOMETHICONE D5 WORKS:
Cyclomethicone D5 works by carrying the key ingredients of a formulation into the skin and hair for better absorption.
Lacking penetrative powers, Cyclomethicone D5 simply forms a layer over the skin.
Cyclomethicone D5 makes the surface slippery and then evaporates owing to its volatility.

CONCENTRATION AND SOLUBILITY OF CYCLOMETHICONE D5:
Cyclomethicone D5 is insoluble in water and is soluble in alcohols, silicones, and solvents.
Cyclomethicone D5 is suggested that its concentration be kept between 3%-10% for deodorants and skin care products, though it can be increased up to 20%.

HOW TO USE CYCLOMETHICONE D5:
Heat oil phase up to 80o
Add Cyclomethicone D5 to the heated phase.
Cover the vessel to prevent loss of ingredients due to evaporation.
Wait until Cyclomethicone D5 dissolves and proceed with emulsification.

BENEFITS OF CYCLOMETHICONE D5:
*Rapidly evaporates without cooling the skin.
*Leaves the skin dry, smooth and silky
*Ideal carrier for makeup, other color cosmetic skin creams, deodorants and stick products without the oily feel
*Provides excellent stability and aesthetics

PRODUCTION AND POLYMERIZATION OF CYCLOMETHICONE D5:
Commercially Cyclomethicone D5 is produced from dimethyldichlorosilane.
Hydrolysis of the dichloride produces a mixture of cyclic dimethylsiloxanes and polydimethylsiloxane.

From this mixture, the cyclic siloxanes including Cyclomethicone D5 can be removed by distillation.
In the presence of a strong base such as KOH, the polymer/ring mixture is equilibrated, allowing complete conversion to the more volatile cyclic siloxanes:

[(CH3)2SiO]5n → n [(CH3)2SiO]5
where n is a positive integer.

D4 and Cyclomethicone D5 are also precursors to the polymer.
The catalyst is again KOH.

PROPERTIES OF CYCLOMETHICONE D5:
Clear, colorless, odorless fluid
Cosmetic grade…excellent for base fluids in cosmetic formulations
Volatile carrier (100% evaporation at room temperature)..leaves no residue

Low heat of vaporization…non-stinging and will not cool the skin when it evaporates
Excellent lubricity before evaporation
Low surface tension fluids (high spreadability)

Exempt from federal VOC regulations (inlcuding CARB)…replacement for petroleum based solvents that are not VOC Compliant
VOC Exempt Solvent for low solvency applications

Miscible with virtually all polydimethylsiloxane fluids and most petroleum based fluids
Soluble in most anhydrous alcohols, waxes, oils (except castor), hydrocarbon oils, esters and silicone fluid.
Insoluble in water

SPECIFICATIONS OF CYCLOMETHICONE D5:
*Clear colorless liquid
*characteristic odor
*insoluble in water / alcohol
*store tightly sealed, protected from heat and moisture
*shelf life of 36 months when properly stored / handled

BENEFITS OF CYCLOMETHICONE D5:
*No Oily Residue
*Improves Efficacy of Antiperspirants
*Dry, Non-Greasy Feel
*Improves Wet Combing
*Greater Flexibility in Formulating Cosmetic Products

WHAT ARE CYCLOMETHICONE D5'S BENEFITS?
Cyclomethicone D5 offers minimal benefits to the skin.
Companies primarily add Cyclomethicone D5 to skincare products to improve their sensory feel and texture.
However, Cyclomethicone D5 has other properties that boost the effectiveness of formulations.

*Lightweight carrier
Cyclomethicone D5 is an effective carrier, or solvent, due to its ability to evaporate quickly.
Cyclomethicone D5 helps to evenly coat the skin with active ingredients without leaving a heavy, sticky, or tacky residue after application.
Cyclomethicone D5 leaves the active ingredients to work from the skin’s surface as they evaporate.

*Cyclomethicone D5 forms a protective barrier
Cyclomethicone D5 also acts as an emollient that adds a protective barrier to the skin.
However, Cyclomethicone D5 evaporates quickly and does not stay on the skin surface, so it does not leave a sticky feel.
Cyclomethicone D5 leaves a protective yet breathable layer on the skin.

*Facilitates a smooth application and delivery
Cyclomethicone D5 helps make formulations feel smooth and silky for a smooth and easy application.
Cyclomethicone D5 allows products to spread evenly over the skin so that all areas of the skin receive key ingredients from a product.

*Improves the appearance of scars
Many silicone gel preparations use Cyclomethicone D5 as a carrier to deliver other silicone ingredients to the skin.
An older study found that silicone gel preparations improved the texture, height, and appearance of hypertrophic scars and keloids.
However, Cyclomethicone D5 is important to note that the researchers conducted this study on a small sample size of 30 people.

*Inexpensive
Cyclomethicone D5 is generally less costly than other silicone ingredients.
Therefore, a person may find that products containing Cyclomethicone D5 are more affordable.

FUNCTIONS OF CYCLOMETHICONE D5:
*Emollient
*Sensory Modifier
*Hair conditioning
*Solvent

WHY DO WE USE CYCLOMETHICONE D5 IN FORMULATIONS?
Cyclomethicone D5 adds wonderful slip to our products and helps reduce tackiness.
Small concentrations add a really gorgeous, expensive-feeling skin feel.
Higher concentrations of Cyclomethicone D5 help “lighten” products, speeding up dry down/absorption speeds.

Cyclomethicone D5 is commonly used as a diluent in hair oils to create products that don’t leave the hair looking greasy.
A small amount of oil will be diluted in a larger amount of Cyclomethicone D5; when that is applied to the hair the cyclomethicone will readily evaporate, leaving a tiny amount of well-distributed oil behind on the hair.

In cosmetics, you’ll find Cyclomethicone D5 in all kinds of cream cosmetics, where it provides body to the cosmetic and then evaporates readily after application, leaving behind the pigment without any added oil that would compromise wear time.

DO YOU NEED CYCLOMETHICONE D5?
No, but if you love making cosmetics and/or have hair that is not very tolerant of oils, Cyclomethicone D5 is a wonderful ingredient to have on hand.

REFINED OR UNREFINED?
Cyclomethicone D5 only exists as a refined product.

STRENGHTS OF CYCLOMETHICONE D5:
Strengths
Cyclomethicone D5 is a very versatile ingredient that improves the skin feel of anything I’ve ever tried it in.

WEAKNESSES OF CYCLOMETHICONE D5:
The biggest weakness of Cyclomethicone D5 (and other silicones) is all the negative myths about it.
These myths include the idea that silicones suffocate the skin, cause acne, and are bad for sensitive skin.

HOW TO WORK WITH CYCLOMETHICONE D5:
Include Cyclomethicone D5 in the oil phase of your products; it should be cold-processed as it will readily evaporate (and possibly burst into flame) when heated (the flashpoint is 77°C [169°F]).

STORAGE AND SHELF LIFE OF CYCLOMETHICONE D5:
Stored somewhere cool, dark, and dry, cyclomethicone has an indefinite shelf life.
Keep it away from sparks and heat sources as the flashpoint is 77°C (169°F)

TIPS, TRICKS, AND QUIRKS OF CYCLOMETHICONE D5:
“Silicones… aren’t biodegradable, but they are degradable – they degrade in the environment, and turn back into silica (sand), carbon dioxide and water.”

FUNCTIONS OF CYCLOMETHICONE D5:
*Emollient
Cyclomethicone D5 serves as a non-comedogenic emollient for skin care formulations.
The hydrating properties of Cyclomethicone D5 are excellent for the skin as it traps moisture, making the skin smooth and soft.
Cyclomethicone D5 is used in lightweight products as it does not penetrate the skin but evaporates quickly.

*Color Protection
Cyclomethicone D5 can help colored hair last longer, retain its vibrant look, and protect and enhance color and shine.
Rinse-off conditioners containing different types of Cyclomethicone D5 can show an increase in color retention for hair that has been colored.

*Heat Protectant
Protecting hair from excessive heat is a need among many consumers. Hair dryers and other heated appliances first soften the keratin of the hair.
If the devices are too hot, they can cause water in the hair to boil, forming minute bubbles of steam inside the softened hair shaft, weakening the fiber and potentially leading to total fracture.

Cyclomethicone D5 is thermally stable and spreads easily on the hair, forming a protective film to help prevent water loss from the hair shaft caused by the heat of dryers or heated styling tools.
Thus helps guard against damage from heat styling.

*Carrier and Perfume Deliver
Cyclomethicone D5 serves as a prominent carrier for many skin care and hair care formulations.
While being a carrier Cyclomethicone D5 also helps deliver fragrance and gives skin a smooth, non-cooling feel.
Cyclomethicone D5 also acts as a transient carrier for active salts in antiperspirants & deodorants.

*Hair Conditioning
Cyclomethicone D5 is recognized as multifunctional ingredients in a variety of hair care products.
With their unique chemical and physical properties, these highly versatile materials not only condition hair but can be used to add shine, making combing easier.

Both are suitable for dry combing results and wet combing.
Cyclomethicone D5 also enhances hair strength, repairs damaged hair, gives a perception of moisturization, aids curl retention, controls frizz, and adds volume—or even reduces volume.

Cyclomethicone D5 is commonly used in shampoos, hair conditioners, hair sprays, anti-frizz, and hair-detangling products.
Cyclomethicone D5 forms a layer on the hair, protecting and preventing it from damage while also allowing the product to spread easily and evenly.

PHYSICAL and CHEMICAL PROPERTIES of CYCLOMETHICONE D5:
Chemical formula: [(CH3)2SiO]5
Molar mass: 370.770 g·mol−1
Appearance: Colourless liquid
Density: 0.958 g/cm3
Melting point: −47 °C; −53 °F; 226 K
Boiling point: 210 °C (410 °F; 483 K)
Solubility in water: 17.03±0.72 ppb (23 °C)
log P: 8.07
Vapor pressure: 20.4±1.1 Pa (25 °C)
Viscosity: 3.74 cP

Cyclotetrasiloxane (D4) content: < 0.1 %
Appearance: Colorless liquid
Specific gravity (25°C/77°F): 0.95
Viscosity (25°C/77°F): 4.0 mm2/s
Refractive index (25°C/77°F): 1.397
Surface tension (25°C/77°F): 18.0 mN/m
Flash point (Closed Cup): 77°C (171°F)
Freezing point: -50°C (-58°F)
Boiling point (760 mmHg): 205°C (401°F)
Water content: 250 ppm

Chemical description: Silicone
Forms: Liquid
Solubility in water: No data available
Boiling point: 211°C
Appearance: Colorless transparent liquid
Purity, %: ≥99.0
Specific gravity (25°C, g/cm3): 0.940-0.960
Refractive index, 25°C: 1.3850-1.4050
Viscosity(25°C, cst): 2-6
Molecular Weight: 370.77 g/mol

Hydrogen Bond Donor Count: 0
Hydrogen Bond Acceptor Count: 5
Rotatable Bond Count: 0
Exact Mass: 370.09395673 Da
Monoisotopic Mass: 370.09395673 Da
Topological Polar Surface Area: 46.2Å²
Heavy Atom Count: 20
Formal Charge: 0
Complexity: 258
Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0

Undefined Atom Stereocenter Count: 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Covalently-Bonded Unit Count: 1
Compound Is Canonicalized: Yes
EC Number: 208-764-9
CAS Number: 541-02-6
Molecular Formula: C10H30O5Si5
Molecular Weight: 370.77 g/mol
Exact Mass: 370.076 g/mol

Physical State: Clear, colorless liquid
Density: ~0.95 g/cm³ at 25°C
Boiling Point: 210°C
Flash Point: ~77°C (closed cup)
Water Solubility: Insoluble
Vapor Pressure: Low
Refractive Index: ~1.397 at 25°C
Texture: Ultra-light, slippy, luxurious
Scent: Nothing noticeable
Absorbency Speed: Very fast
Approximate Melting Point: Liquid at room temperature
Solubility: Oil, silicones
Chemical Name: Decamethylcyclopentasiloxane
Chemical Formula: [(CH₃)₂SiO]₅

Appearance at 25 °C: Colorless liquid
Viscosity (cSt): 3.50 – 4.50
Molecular Weight (g/ml): 371
Specific Gravity (at 25°C/15.6°C): 0.950 – 0.960
Density at 18°C (g/cm3): 0.96
Acid Value (mg KOH/g): max. 0.0100
Solubility in Water at 25°C: 17-20 µg/L
Melting Point at 760 mmHg (°C): −47 °C
Boiling Point (at 760 mmHg): 211°C
Flash Point (°C): 77
Refractive Index: 1.397
Heat of Vaporization (at 25°C) kJ/kg: 157 kJ/kg
Odor: Odorless
Shelf Life: 12-18 months

Molecular Weight: 370.77 g/mol
Hydrogen Bond Donor Count: 0
Hydrogen Bond Acceptor Count: 5
Rotatable Bond Count: 0
Exact Mass: 370.09395673 g/mol
Monoisotopic Mass: 370.09395673 g/mol
Topological Polar Surface Area: 46.2 Å²
Heavy Atom Count: 20
Formal Charge: 0
Complexity: 258
Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0

Undefined Atom Stereocenter Count: 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Covalently-Bonded Unit Count: 1
Compound Is Canonicalized: Yes
Chemical formula: [(CH3)2SiO]5
Molar mass: 370.770 g·mol−1
Appearance: Colourless liquid
Density: 0.958 g/cm3
Melting point: −47 °C; −53 °F; 226 K
Boiling point: 210 °C (410 °F; 483 K)

Solubility in water: 17.03±0.72 ppb (23 °C)
log P: 8.07
Vapor pressure: 20.4±1.1 Pa (25 °C)
Viscosity: 3.74 cP
Physical state: Clear, liquid
Color: Colorless
Odor: No data available
Melting point/freezing point: -38 °C at 1.013 hPa
Initial boiling point and boiling range: 90 °C at 13 hPa (literature value),
210 °C at 1.013 hPa (literature value)
Flammability (solid, gas): No data available

Upper/lower flammability or explosive limits: No data available
Flash point: 73 °C - closed cup
Autoignition temperature: 645.15 K
Decomposition temperature: No data available
pH: No data available
Viscosity: Kinematic viscosity and dynamic viscosity data not available
Water solubility: < 0.00001 g/l at 23 °C
Partition coefficient (n-octanol/water): log Pow: 8.023 at 25.3 °C
Vapor pressure: 0.3 hPa at 25 °C, 41 hPa at 110.6 °C
Density: 0.958 g/cm3 at 25 °C (literature value)

Relative density: 0.96 at 20 °C
Relative vapor density: Not available
Particle characteristics: No data available
Explosive properties: No data available
Oxidizing properties: No data available
Other safety information: No data available
CBNumber: CB9256200
Melting point: -44 ℃
Boiling point: 210.0 ℃ (±0.0 °C at 760 mmHg)
Density: 0.958 g/cm³

Appearance: Colorless liquid
Flash point: 72.2 ℃
Safety description: S23, S24/25, S36, S26
Hazard symbol: XI
Hazard statement: R36/37/38, R53UN
Dangerous goods number: NA 1993 / PGIII
RTECS No: GY5945200
CAS No.:541-02-6
EINECS: 208-764-9
Molecular Formula:C10H30O5Si5
Molecular Weight:370.770

FIRST AID MEASURES of CYCLOMETHICONE D5:
-Description of first-aid measures:
*If inhaled:
After inhalation:
Fresh air.
*In case of skin contact:
Take off immediately all contaminated clothing.
Rinse skin with water/ shower.
*In case of eye contact:
After eye contact:
Rinse out with plenty of water.
Remove contact lenses.
*If swallowed:
After swallowing:
Make victim drink water (two glasses at most).
Consult doctor if feeling unwell.
-Indication of any immediate medical attention and special treatment needed:
No data available

ACCIDENTAL RELEASE MEASURES of CYCLOMETHICONE D5:
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Cover drains.
Collect, bind, and pump off spills.
Observe possible material restrictions.
Take up with liquid-absorbent material.
Dispose of properly.
Clean up affected area.

FIRE FIGHTING MEASURES of CYCLOMETHICONE D5:
-Extinguishing media:
*Suitable extinguishing media:
Carbon dioxide (CO2)
Foam
Dry powder
*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given.
-Further information:
Remove container from danger zone and cool with water.
Suppress (knock down) gases/vapors/mists with a water spray jet.
Prevent fire extinguishing water from contaminating surface water or the ground water system.

EXPOSURE CONTROLS/PERSONAL PROTECTION of CYCLOMETHICONE D5:
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection.
Safety glasses
*Skin protection:
Full contact:
Material: Nitrile rubber
Minimum layer thickness: 0,4 mm
Break through time: 480 min
Splash contact:
Material: Nitrile rubber
Minimum layer thickness: 0,11 mm
Break through time: 30 min
*Respiratory protection:
Recommended Filter type: Filter A (acc. to DIN 3181)
-Control of environmental exposure:
Do not let product enter drains.

HANDLING and STORAGE of CYCLOMETHICONE D5:
-Precautions for safe handling:
*Advice on protection against fire and explosion:
Take precautionary measures against static discharge.
*Hygiene measures:
Change contaminated clothing.
Wash hands after working with substance.
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed.

STABILITY and REACTIVITY of CYCLOMETHICONE D5:
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature) .
-Incompatible materials:
No data available