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Dimethicone 5 is a silicone-based ingredient used in many personal care products.
Dimethicone 5 keeps all of the ingredients in a product from separating.
Dimethicone 5 also forms a breathable barrier on the skin and hair, reducing moisture loss while imparting a soft, velvety finish.
CAS Number: 9016-00-6
Molecular Formula: (C2H6OSi)n
Molecular Weight: 94.18664
EINECS Number: 618-493-1
Synonyms: HEXAMETHYLDISILOXANE, 107-46-0, Disiloxane, hexamethyl-, Oxybis(trimethylsilane), HMDSO, Fluka AG, Hexamethyl disiloxane, Bis(trimethylsilyl)ether, Belsil DM 0.65, Bis(trimethylsilyl)oxide, Bis(trimethylsilyl) ether, Bistrimethylsilyl ether, Bis-trimethylsilyl oxide, KF 96L, Bis(trimethylsilyl) oxide, Silane, oxybis(trimethyl-, SWS-F 221, trimethyl(trimethylsilyloxy)silane, OS 10, NSC 43346, CCRIS 1325, HSDB 5378, EINECS 203-492-7, UNII-D7M4659BPU, trimethylsilyl ether, Dow corning 200, D7M4659BPU, ((CH3)3Si)2O, AEC DISILOXANE, DTXSID4026769, CHEBI:78002, MIRASIL HMS, AI3-51466, NSC-43346, Silane, oxybis(trimethyl)-, VOLASIL DM-0.65, DTXCID406769, SI-TEC DM 0.65, EC 203-492-7, SF1000N-0.65CST, NSC43346, MFCD00008265, NCGC00164086-01, Disiloxane, 1,1,1,3,3,3-hexamethyl-, 26298-61-3, 1,1,1,3,3,3-Hexamethyldisiloxane, CAS-107-46-0, Dimethicone ~4000 (Polydimethylsiloxane), Hexamethyldisiloxane Solution in Methanol, 100ug/mL, bis-tms ether, di-tms ether, TMS ether, trimethylsilylether, Dimethicone, BAN, Dimethicone (NF), hexamethyl-disiloxane, HMDO, Dimeticone (JAN/INN), Polydimethylsiloxane, PDMS, Sentry dimethicone (TN), DISILOXANE, HEXAMETHYL, SCHEMBL6413, Dow corning 200/0.65, Hexamethyldisiloxane NMR grade, Hexamethyldisiloxane, >=98%, SCHEMBL3965314, CHEMBL3184090, HEXAMETHYLDISILOXANE [MI], SF1000N-0.65 cSt, HEXAMETHYLDISILOXANE [HSDB], BCP11630, HEXAMETHYLDISILOXANE [VANDF], trimethyl[(trimethylsilyl)oxy]silane, Tox21_112082, Tox21_201713, Tox21_303119, Dimethyl Silicone Fluid Silicone Oil, AKOS000119927, Hexamethyldisiloxane (analytical grade), MSK001099-100M, 1,1,1,3,3,3-Hexamethyldisiloxane #, NCGC00164086-02, NCGC00257007-01, NCGC00259262-01, FD165432, 1ST001099-100M, DB-040758, H0091, H7310, Hexamethyldisiloxane, NMR grade, >=99.5%, NS00041276, WLN: 1-SI-1&1&O-SI-1&1&1, Xiameter PMX-200 Silicone Fluid 0.65 cSt, Hexamethyldisiloxane, puriss., >=98.5% (GC), A801702, Hexamethyldisiloxane, viscosity 0.65 cSt (25 C), Q419440, BRD-K26674746-001-01-4, F0001-0143, Z104473212, Hexamethyldisiloxane, for GC derivatization, >=98% (GC), InChI=1/C6H18OSi2/c1-8(2,3)7-9(4,5)6/h1-6H, 203-492-7, POLYDIMETHYLSILOXANE, TRIMETHYLSILOXY TERM;POLYDIMETHYLSILOXANE, TRIMETHYLSILOXY TERMINATED, BLEND;POLYDIMETHYLSILOXANES, TRIMETHYLSILOXY TERMINATED;SILICONE FLUID;SILICONE FLUID, 100;SILICONE FLUID 1,000;SILICONE FLUID 500;Dimethylpolysiloxan
Dimethicone 5 is a type of polydimethylsiloxane (PDMS), a silicone-based polymer that is widely used in various industries due to its excellent lubricating, conditioning, and protective properties.
The "5" in Dimethicone 5 typically refers to its viscosity, measured in centistokes (cSt), indicating that it has a relatively low molecular weight and a light, fluid consistency.
This makes it particularly useful in formulations where a lightweight, non-greasy texture is desired.
Dimethicone 5 is commonly used in personal care products, pharmaceuticals, and industrial applications due to its ability to form a smooth, protective barrier on surfaces while providing hydration and a silky feel.
Dimethicone 5 is a low-viscosity, linear polydimethylsiloxane (PDMS) fluid that belongs to the family of silicones widely used in cosmetic, pharmaceutical, and industrial applications.
The number "5" in its name typically indicates that it has a viscosity of approximately 5 centistokes (cSt), which means it is a very light, spreadable, and non-greasy silicone oil.
This makes it particularly useful in formulations where a thin, silky, and fast-absorbing texture is desired.
In personal care products, Dimethicone 5 is frequently used as an emollient, skin protectant, and conditioning agent in lotions, creams, serums, and hair care products.
Due to its lightweight nature, it provides a smooth, non-sticky feel while helping to improve the spreadability of other ingredients.
Dimethicone 5 also gives these products a smooth, silky texture.
When applied to the skin or hair, Dimethicone 5 creates a physical barrier to seal in hydration, keeping skin moisturized and hair frizzfree.
In cosmetics, Dimethicone 5 “helps to ll in ne lines and wrinkles,” says Jessie Cheung, MD, a board certied dermatologist.
Dimethicone 5 helps your makeup look even rather than cakey, and gives it a matte nish.
Dimethicone 5 is also noncomedogenic, meaning it won’t clog pores.
Dimethicone 5 colourless liquid with a viscosity, The polydimethylsiloxane materials are excellent examples of silicones because of their chemical properties and widespread industrial use.
They can be manufactured as gels, resins, fluids, or elastomers, depending on the cross-linking characteristics.
Toxicity testing using polydimethylsiloxane compounds on animals has found little, if any, harmful effects associated with chronic exposure.
These tests include oral dosing and teratogenicity testing.
Human health effects associated with silicone implants have been reported.
Polydimethylsiloxane is the most prevalent silicone used medically and has been incorporated into many prostheses, including breast implants.
Dimethicone 5 is a silicone-based polymer that is frequently used as a skin protectant in skincare products.
The second most common moisturizing ingredient found in moisturizers after petrolatum, Dimethicone 5 helps condition the skin— improving its softness and exibility.
Dimethicone 5 is a mixture of poly(dimethyl siloxane) and silica gel, known for their antifoaming properties.
Dimethicone 5 is an orally administered suspension containing polysiloxanes and silicon dioxide.
Dimethicone 5 is an antifoaming agent and is used to reduce bloating by decreasing the surface tension in bubbles.
Excessive formation of gas bubbles in the stomach and intestines can be painful and can also be of hindrance for any ultrasound examination.
Simethicone can be found in antacids and in suspensions given to babies against colic.
Dimethicone 5 is a silicon-based organic polymer, inert and non-toxic.
Dimethicone 5 is applicable in the pharmaceutical, food, and cosmetic industry.
Dimethicone 5 is excreted unchanged unaltered in the faeces and is non-mutagenic.
This is because of Dimethicone 5’s ability to smooth the appearance of ne lines and form a protective barrier, Cheung explains.
Dimethicone 5 forms a layer on the skin, thereby locking in hydration and decreasing water loss.
“Dimethicone 5 coats the strands and smooths the cuticles, giving a sleek and shiny look while protecting from heat,” Cheung says.
Since Dimethicone 5 helps moisturize skin and retain water, it can help soothe dry, itchy skin.
Some people believe that Dimethicone 5 is harmful because it’s not natural.
Others say that since it forms a barrier, Dimethicone 5 seals in oil, sweat, dirt, and other things that can clog pores and lead to acne.
However, the amount of Dimethicone 5 in face and hair products is generally considered safe.
In a 2019 review, the Cosmetic Ingredient Review Expert Panel found that most over-the-counter products contain less than 15 percent Dimethicone 5.
Dimethicone 5 acts as a styling agent.
Dimethicone 5 is a linear, non-reactive, unmodified polydimethylsiloxane.
Exhibits low surface tension and a high spreading coefficient.
Imparts hydrophobic, protective but breathable barrier to the skin.
Dimethicone 5 reduces stickiness & whitening and imparts a soft emolliency to the skin.
Due to their flexible polymer backbone, dimethicones have high permeability to gases which allows respiration of the skin.
Dimethicone 5 is used in antiperspirants/ deodorants, color cosmetics, hair care, shaving, skin care and sunscreen.
It is designed for use in eye- & lip-make-up and foundations.
Dimethicone 5 is usually used as sealant, structural microchannel material or elastomer stamping matrix in soft lithography techniques like microcontact printing and micromolding.
Dimethicone 5 is an antifoaming agent used in fats and oils.
Dimethicone 5 prevents foaming and spattering when oils are heated and prevents foam formation during the manufacture of wine, rened sugar, gelatin, and chewing gum.
Dimethicone 5 is also termed methyl polysilicone and methyl silicone
Dimethicone 5 silicone fluid is a low-viscosity dimethicone that can be used in many personal care and cosmetic applications, including hair care, skin care, body care, intimate care, and color cosmetics.
Dimethicone 5 provides excellent spreading and volatility to personal care formulations.
Dimethicone 5 has a viscosity of 5cs.
Dimethicone 5 has water repellent properties which forms a protective ‘glove’ against water-soluble irritants.
Recommended as a barrier to protect skin against nappy rash, bedsores and urinary incontinence as well as irritating substances such as soap, detergents, water and some chemicals.
Ideally apply before putting babies nappies on, washing dishes, gardening, working on greasy/oily equipment or apparatus and prior to some medical procedures.
Melting point: -35°C
Boiling point: 155-220°C
Density: 0.971
vapor pressure: 5 mm Hg ( 20 °C)
refractive index: 1.4035
Flash point: 63°C
storage temp.: Refrigerator
solubility: Chloroform (Slightly), Methanol (Slightly)
form: Viscous Liquid
Specific Gravity: 0.918
color: Colorless
Viscosity: 5cSt(25°C)(lit.)
Water Solubility: INSOLUBLE
Stability: Stable. Flammable or combustible. Flammability depends upon extent of polymerization. Incompatible with strong oxidizing agents.
Surface tension 19mN/m at 20°C
Dimethicone 5 is a gentle, eective moisturizing ingredient for both the face and body.
Dimethicone 5 helps provide long-lasting skin-smoothing benets, and is ideal for areas prone to rough, dry skin such as knees, elbows, hands and feet, and can help with certain skin conditions like eczema.
Dimethicone 5 is a silicone oil that is also known as polydimethylsiloxane (PDMS).
Dimethicone 5 has viscoelastic properties.
Dimethicone 5 is used as a surfactant, antifoaming agent, carminative in various products such as medical devices, food products, and lubricants.
Dimethicone 5 is used in a number of health and beauty products including hair care products such as shampoo, conditioner, leave-in conditioner, and de-tangling products.
On skin, it is also observed to have moisturizing actions.
A study found that that the 100 % Dimethicone 5 product is a safe and highly eective head lice treatment for children and may serve as less toxic and less resistance-prone alternative to pesticide-containing products.
Dimethicone 5 is a form of silicone used to give products lubricity, slip, and good feel.
Dimethicone 5 can also serve as a formulation defoamer and help reduce the feeling of greasiness that some creams leave on the skin immediately upon application.
In addition, Dimethicone 5 is reported to protect the skin against moisture loss when used in larger quantities.
Dimethicone 5 improves product ow and spreadability.
In combination with other ingredients, Dimethicone 5 becomes a good waterproong material for sunscreen emulsions, and helps reduce the greasiness often seen in high-SPF preparations.
Dimethicone 5 ointments are excellent water-protective agents because they have an extremely low surface tension and penetrate crevices in the skin to form a plastic-like barrier.
Further, they are nontoxic, inert, stable, and water repellent.
As such, they are useful as barrier creams in industry or wherever constant or frequent exposure to aqueous compounds is a problem.
They will not, however, protect well against solvents, oils, or dusts
Dimethicone 5 is a blend of a high viscosity dimethiconol in a low viscosity dimethicone fluid.
In pharmaceutical applications, Dimethicone 5 is used as an anti-foaming agent and as a skin protectant in topical formulations, helping to reduce irritation and improve the sensory properties of medicinal creams and ointments.
Dimethicone 5 can also be found in gastrointestinal treatments designed to relieve bloating and gas, as silicones have excellent anti-foaming properties.
In industrial settings, Dimethicone 5 is utilized as a lubricant, release agent, and surface treatment agent due to its hydrophobic nature and resistance to high and low temperatures.
It is often incorporated into coatings, polishes, and specialty lubricants to enhance durability, water resistance, and smoothness.
Dimethicone 5 is a preferred ingredient in many formulations where a lightweight, long-lasting, and non-irritating silicone fluid is needed.
Uses:
Silicones are polymeric materials having silicon and oxygen on their composition.
They are largely inert compounds usually heat-resistant, nonstick, and rubberlike.
Dimethicone 5 (PDMS, molecular formula (C2H6OSi)n, density 965 kg/m3, boiling point: < 200℃, shear modulus between 100 kPa and 3 MPa, loss tangent less than 0.001) is a viscoelastic polymer (elastomer).
Dimethicone 5 is widely used in microfluidic technology thanks to some of its unique properties: it is low cost, nontoxic, chemically resistant, and stable against humidity and temperature variations.
Dimethicone 5 also presents low interfacial energy, which allows it to avoid chemical interactions with other polymers and solutions in the microfluidic channels.
After polymerization and cross-linking, solid PDMS presents hydrophobic surface.
A treatment using plasma oxidation is frequently used to alter the surface chemistry by adding silanol (SiOH) groups to the surface terminations and make the surface hydrophilic (wettable).
Dimethicone 5 is usually used as sealant, structural microchannel material or elastomer stamping matrix in soft lithography techniques like microcontact printing and micromolding.
Dimethicone 5 is an antifoaming agent used in fats and oils.
It prevents foaming and spattering when oils are heated and prevents foam formation during the manufacture of wine, refined sugar, gelatin, and chewing gum.
Dimethicone 5 is also termed methyl polysilicone and methyl silicone.
Used in machinery, mold release applications, and various coatings to provide smooth, frictionless surfaces.
Applied to textiles, glass, and other surfaces to create hydrophobic barriers that resist moisture.
Helps to prevent excessive foam formation in industrial processes, detergents, and food processing applications.
Found in automotive and furniture polishes to provide a glossy, protective finish that repels dust and water.
Dimethicone 5 can be found in ointments, creams, lotions, serums, sunscreens and lip balms.
To reap its moisturizing and skin-protectant benets, use these products as directed.
Dimethicone 5 forms a barrier on the skin that helps minimizes water loss.
Dimethicone 5 also helps improve the skin’s smoothness and exibility by lling gaps between the cells in the uppermost layer of your skin.
Dimethicone 5 of various viscosities are widely used in cosmetic and pharmaceutical formulations.
In topical oil-in-water emulsions Dimethicone 5 is added to the oil phase as an antifoaming agent.
Dimethicone 5 is hydrophobic and is also widely used in topical barrier preparations.
Therapeutically, Dimethicone 5 may be used with simethicone in oral pharmaceutical formulations used in the treatment of atulence.
Dimethicone 5 is also used to form a waterrepellent lm on glass containers.
Dimethicone-5 belongs to a group of polymeric organosilicon compounds that are commonly referred to as silicones.
Dimethicone-5 is the most widely used silicon-based organic polymer, as its versatility and properties lead to many applications.
Dimethicone-5 is particularly known for its unusual rheological (or ow) properties.
Dimethicone 5 is optically clear and, in general, inert, nontoxic, and nonammable.
Dimethicone-5 is one of several types of silicone oil (polymerized siloxane).
Dimethicone-5s applications range from contact lenses and medical devices to elastomers; it is also present in shampoos (as it makes hair shiny and slippery), food (antifoaming agent), caulking, lubricants and heat-resistant tiles.
Dimethicone 5 is a colorless liquid with both cosmetic and therapeutic uses.
Dimethicone 5 is used in topical creams and ointments to help distribute the active ingredients.
Dimethicone 5 is used as an anti-foaming agent, a hair and skin conditioner, and in the treatment of head lice and, as an antibloating/anti-atulence agent
Simethicone is a mixture of Dimethicone 5 and silica gel, known for their antifoaming properties.
Dimethicone 5 is an orally administered suspension containing polysiloxanes and silicon dioxide.
Dimethicone 5 is an antifoaming agent and is used to reduce bloating by decreasing the surface tension in bubbles.
Excessive formation of gas bubbles in the stomach and intestines can be painful and can also be of hindrance for any ultrasound examination.
Dimethicone 5 can be found in antacids and in suspensions given to babies against colic.
Acts as an emollient that creates a smooth, silky feel on the skin while forming a breathable protective barrier to prevent moisture loss.
Found in shampoos, conditioners, and serums to reduce frizz, improve shine, and enhance hair manageability without leaving a heavy residue.
Makeup and Primers: Helps to create a soft-focus effect by filling in fine lines and pores, giving the skin a smooth, even texture.
Enhances water resistance and spreadability, improving the overall performance of UV filters.
Lipsticks and Lip Balms: Provides a silky texture and prevents moisture loss, keeping lips hydrated and smooth.
Dimethicone 5 is used in topical treatments for dry, irritated, or sensitive skin, forming a barrier to shield against environmental stressors.
Helps to reduce foaming in medicinal formulations, such as liquid medications or gastrointestinal treatments.
Dimethicone 5 is used in ointments to enhance spreadability and improve the protective function of the formulation.
The most common usage area is the cosmetics industry.
Dimethicone 5 has excellent hydrophobic moisture and good light transmission in this area.
Dimethicone 5 has an intensive use due to its oil properties, lling the ne lines on the skin and abrasion from the skin.
Dimethicone 5 is used in the manufacture of cosmetics, in the manufacture of body lotions, in the manufacture of cosmetic styling products, in hair styling.
At the same time, because it gives suitable features for personal care.
Dimethicone 5 natural silicon derivatives form oxane from moisture in the skin in an augmented manner, giving it a boost.
The diapers used in babies are in use in their use in baby skin products.
Dimethicone 5 reduces itching and healing while restoring moisture.
Dimethicone 5 is used in shampoos, conditioners and hair care production.
The active ingredient can be used frontally.
Dimethicone 5 is used in the manufacture of root canal sealers.
Dimethicone 5, another widely used polymer, has a silicon-oxygen main chain instead of a carbon main chain.
Dimethicone 5 feature is that it is less dependent on temperature than other rubbers.
Dimethicone 5 is used in drainage pipes and catheters, some vascular prostheses, and membrane oxygenators (respirators) due to its high oxygen permeability.
Because of its excellent exibility and stability, it is used in numerous prostheses such as nger joints, blood vessels, heart valves, breast implants, external ear, jaw and nose implants.
Dimethicone 5, a hard material, is synthesized as a result of the polymerization of bisphenol A and phosgene.
Due to their high impact resistance, they are used in eyeglasses and safety glasses, oxygenators and heart-lung machines.
Dimethicone 5 has water repellent properties which forms a protective ‘glove’ against water-soluble irritants.
Recommended as a barrier to protect skin against nappy rash, bedsores and urinary incontinence as well as irritating substances such as soap, detergents, water and some chemicals.
Ideally apply before putting babies nappies on, washing dishes, gardening, working on greasy / oily equipment or apparatus and prior to some medical procedures
Safety Profile:
Dimethicone 5 is generally considered to be safe for use in personal care, pharmaceutical, and industrial applications when used according to standard guidelines.
However, like any chemical substance, it can pose certain hazards or risks if not handled properly.
Dimethicone 5 is typically not irritating to the skin, but in rare cases, individuals with sensitive skin may experience mild irritation or allergic reactions.
Dimethicone 5’s always recommended to perform a patch test before using products containing this ingredient extensively.
If the product comes into direct contact with the eyes, it may cause mild irritation, though it is generally considered low-risk for eye damage.
Rinsing with water should alleviate any discomfort.
While Dimethicone 5 itself is generally non-volatile, inhaling large amounts of aerosols or vapors (in certain industrial applications) could potentially irritate the respiratory system.
However, this is unlikely during normal use in cosmetics or personal care products.
Protective measures (e.g., masks or proper ventilation) should be used in industrial settings where large amounts of silicone products are used in aerosol form.
