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Propylene Glycol Isostearate is used in anti-aging creams, sun care, shaving products, and face and body care applications.
Propylene Glycol Isostearate is also used in food processing like margarine.
Propylene Glycol Isostearate functions as a self-emulsifying agent in cosmetic products.
CAS Number: 68171-38-0 / 63799-53-1
EC Number: 269-027-5
MDL Number: MFCD00152773
Chem/IUPAC Name: Isooctadecanoic acid, monoester with propane-1,2-diol
Molecular Formula: C21H42O3
Molecular Weight: 342.56334000 g/mol
SYNONYMS:
1,2-Propandiol, Propylenglykol, ISOOCTADECANOIC ACID, MONOESTER WITH 1,2-PROPANEDIOL, MONOESTER WITH 1,2-PROPANEDIOL ISOOCTADECANOIC ACID, PROPYLENE GLYCOL ISOSTEARATE, and PROPYLENE GLYCOL MONOISOSTEARATE, CAS number: 68171-38-0 / 63799-53-1, Isooctadecanoic acid, monoester with propane-1,2-diol, 2- hydroxypropyl 16-methylheptadecanoate, iso octadecanoic acid monoester with 1,2-propanediol, iso octadecanoic acid, monoester with 1,2-propanediol, propylene glycol monoisostearate
Propylene Glycol Isostearate is an ester of propylene glycol and isostearic acid.
Isostearic acid is a lightly chained liquid fatty acid obtained from natural sources like vegetable oils.
Propylene Glycol Isostearate is designed for use in face/neck care, body care, colour cosmetics and cleansers.
Propylene Glycol Isostearate comes in pellet form and has a melting point of 41°C.
Propylene Glycol Isostearate's HLB value is 3.
Propylene Glycol Isostearate is suitable for hot processes and is ideally added to the oil phase, the recommended usage range is 0.5 - 4.0%.
Propylene Glycol Isostearate is made from RSPO-certified, sustainable palm oil and has a Natural Origin Index (ISO 16128) of 0.83.
Propylene Glycol Isostearate is Plant-derived, lipophilic, solid emulsifier and emulsion stabilizer for various cosmetic formulations.
Saponification Value of Propylene Glycol Isostearate is 165-174.
Propylene Glycol Isostearate is a clear, odor-free liquid.
Propylene Glycol Isostearate is a non-ionic emollient derived from isostearic acid that improves skin elasticity in facial and body care formulations, particularly anti-aging formulas and shaving preparations.
Propylene Glycol Isostearate is an ester of propylene glycol and Isostearic Acid.
Propylene Glycol Isostearate is a fatty acid that belongs to the group of water-soluble substances.
Propylene Glycol Isostearate has been used as a pharmaceutical agent, an antimicrobial agent, and a pharmacological agent.
Propylene Glycol Isostearate has been shown to have clinical properties that are synergistic with other drugs in humans.
Propylene Glycol Isostearate also has high resistance against bacteria and fungi.
The main function of Propylene Glycol Isostearate is to act as a substrate film for the metabolism of energy.
Propylene Glycol Isostearate is also involved in the production of hydrochloric acid and sodium carbonate, which are important for maintaining body fluid pH levels.
Propylene Glycol Isostearate is a synthetic compound formed from propylene glycol and stearic acid.
Propylene Glycol Isostearate is a white to cream-colored soft waxy solid with a slightly fatty odor and taste.
Stearic acid is a naturally occurring fatty acid found in animal and vegetable oils.
USES and APPLICATIONS of PROPYLENE GLYCOL ISOSTEARATE:
Recommended use level of Propylene Glycol Isostearate is 1-5%.
Propylene Glycol Isostearate is used for external use only.
Applications of Propylene Glycol Isostearate: Emulsions for skin and hair care products.
Propylene Glycol Isostearate is sometimes used in industrial formulations (lubricants, plasticizers) due to its fatty ester chemistry, though primary focus is cosmetics.
Propylene Glycol Isostearate provides excellent substantivity, spreading, and lubricating properties that enhance skin coverage and promote slip.
Tests have shown that Propylene Glycol Isostearate can help increase the SPF of solid UV filters in sunscreen emulsions.
In addition, Propylene Glycol Isostearate is highly substantive and offers moisturization benefits through its skin re-fatting properties.
Propylene Glycol Isostearate is a safe and eco-friendly ingredient.
Propylene Glycol Isostearate is cold-processable, vegetable-derived, and biodegradable.
Propylene Glycol Isostearate is used in anti-aging creams, sun care, shaving products, and face and body care applications.
In addition to its use in cosmetic products, Propylene Glycol Isostearate is also used in food processing like margarine.
Propylene Glycol Isostearate functions as a self-emulsifying agent in cosmetic products.
USE & BENEFITS of PROPYLENE GLYCOL ISOSTEARATE:
Propylene Glycol Isostearate is used as an emollient, humectant, emulsifier, and surfactant in cosmetic products.
As Propylene Glycol Isostearate is apparent both Propylene glycol and isostearic acid individually are very good in terms of skincare.
PG can act as a humectant.
Propylene Glycol Isostearate draws water from water vapor present in the air and moisturizes the skin.
Propylene Glycol Isostearate can be used in all skin types, especially on normal and mild dry skin types.
Propylene Glycol Isostearate helps in retaining moisture in the skin.
Isostearic acid is a fatty acid and it also acts as an emollient.
It fills up the gaps in between the top layer cells in the skin.
It makes skin appear smoother and tighter.
It forms a thin protective barrier on the surface of the skin and protects it from any allergen or bacteria which may compromise with skin’s health otherwise.
As a surfactant, Propylene Glycol Isostearate carries both a water-loving group PG and a fat-loving group- isostearate.
The oil/ fat-loving group attracts dirt, impurities and attaches them to the surfactant molecule whereas because of the water-loving part Propylene Glycol Isostearate can be carried away with water and becomes cleaner.
With the same principle, Propylene Glycol Isostearate also acts as an emulsifier and prevents separation of the components, and enables even distribution of the product components when used.
Propylene Glycol Isostearate is used in formulations of creams, lotions, gels, shampoos, conditioners, sun care products, and other hair and skincare products.
FUNCTIONAL USES of PROPYLENE GLYCOL ISOSTEARATE:
Propylene Glycol Isostearate is primarily used as a cosmetic and personal-care ingredient with several functional roles.
Cosmetic / Personal Care Functions
*Skin conditioning agent —
Propylene Glycol Isostearate helps maintain softness, smoothness, and moisture.
*Emollient —
Propylene Glycol Isostearate provides a lubricating and silky feel, improves skin “spreadability.”
*Surfactant / Cleansing —
mild surface-active properties useful in formulary cleansing systems at low levels.
*Slip modifier / lubricity enhancer —
Propylene Glycol Isostearate helps products glide smoothly on the skin; used in shaving creams, makeup.
*Emulsifier / co-emulsifier —
Propylene Glycol Isostearate helps stabilize oil-in-water systems; useful in creams, lotions, sunscreens.
FUNCTION(S) of PROPYLENE GLYCOL ISOSTEARATE IN COSMETIC PRODUCTS:
*Surfactant (Emulsifying) - EMULSIFIER.
Propylene Glycol Isostearate enables the formation of finely dispersed mixtures of oil and water (emulsions).
*Gloomy
Propylene Glycol Isostearate reduces transparency and light transmission by clouding the product.
WHAT IS PROPYLENE GLYCOL ISOSTEARATE USED FOR?
Here are its main functions:
*Attracts water:
Zeichner says at low concentrations, propylene glycol acts like a humectant, which means Propylene Glycol Isostearate binds water and pulls in hydration to the outer skin layer.
When used in cosmetic products, Propylene Glycol Isostearate helps give the skin a hydrated, dewy appearance.
FUNCTION IN PROPYLENE GLYCOL ISOSTEARATE:
Propylene Glycol Isostearate is a water/oil emulsifier, an ingredient that enables the formation of an emulsion.
Propylene Glycol Isostearate is an emulsion is a physicochemical form created by dispersing (mixing) a water phase and an oil phase.
Examples of cosmetic emulsions include creams, milks, and balms.
Propylene Glycol Isostearate acts as a rheology modifier (improving consistency by increasing viscosity) in cleansing preparations containing anionic surfactants.
This is possible thanks to the formation of so-called mixed micelles.
An opacifying agent, Propylene Glycol Isostearate imparts a cloudy or opalescent, pearly appearance to transparent cleansing preparations.
COSMETIC EFFECT of PROPYLENE GLYCOL ISOSTEARATE:
Emollient.
Propylene Glycol Isostearate is used in skin and hair care products, it creates an occlusive layer (film) on the skin's surface, preventing excessive evaporation of water from the surface (this is an indirect moisturizing effect), thereby conditioning, softening, and smoothing the skin and hair.
FUNCTION(S) of PROPYLENE GLYCOL ISOSTEARATE IN COSMETIC PRODUCTS:
*SKIN CONDITIONING
Propylene Glycol Isostearate maintains the skin in good condition.
*SURFACTANT - CLEANSING
Surface-active agent to clean skin, hair and / or teeth.
PROPERTIES & BENEFITS of PROPYLENE GLYCOL ISOSTEARATE:
*Texture / Feel:
Propylene Glycol Isostearate imparts a soft, non-greasy skin feel — improves spreadability and application comfort.
*Moisturization:
Propylene Glycol Isostearate can help retain moisture by forming a thin occlusive layer on skin that limits water loss.
*Product Stability:
Propylene Glycol Isostearate acts as a mild functional emulsifier and supports stable emulsions in creams and lotions.
*Compatibility:
Propylene Glycol Isostearate works well with oil-based ingredients, silicones, and other emollients.
*Sensory Enhancement:
Propylene Glycol Isostearate enhances the sensory profile of personal care products by providing smoothness and reduced tackiness.
PHYSICAL and CHEMICAL PROPERTIES of PROPYLENE GLYCOL ISOSTEARATE:
CAS Number: 68171-38-0 / 63799-53-1
Chem/IUPAC Name: Isooctadecanoic acid, monoester with propane-1,2-diol
EINECS/ELINCS No: 269-027-5
CAS No.: 57-55-6
Molecular Formula: C3H8O2
Molecular Weight: 76.09
Property: Clear viscous liquid.
MDL: MFCD00152773
XlogP3-AA: 8.00 (est)
Molecular Weight: 342.56334000
Formula: C21 H42 O3
CAS Number: 63799-53-1
Assay: 95.00 to 100.00
Food Chemicals Codex Listed: No
Boiling Point: 443.00 to 444.00 °C. @ 760.00 mm Hg (est)
Flash Point: 328.00 °F. TCC ( 164.70 °C. ) (est)
logP (o/w): 7.826 (est)
Soluble in: water, 0.00717 mg/L @ 25 °C (est)
CAS Number: 63799-53-1
Name: propylene glycol isostearate
Molecular Formula: C21H42O3
Molecular Weight: 342.55638
Density: N/A
Boiling Point: N/A
Melting Point: N/A
Flash Point: N/A
Alternate Name(s): Emerest 2389
Classification: Surfactant
CAS Number: 63799-53-1
Molecular Formula: C21H42O3
Molecular Weight: 342.55638
Density: N/A
Boiling Point: N/A
Melting Point: N/A
INCI Name:Propylene Glycol Isostearate
Chemical Name / IUPAC-style:Isooctadecanoic acid, monoester with propane-1,2-diol (propane-1,2-diol ester of isostearic acid)
CAS Number:63799-53-1 (also found as 68171-38-0)
EC / EINECS Number:269-027-5
Molecular Formula:C₁₁H₄₂O₃ (approx. C₂₁H₄₂O₃)
Molecular Weight:~342.56 g/mol
Appearance:A clear to pale yellow liquid or semi-solid depending on grade and processing.
Odor:Essentially odor-free / very slight fatty smell in pure form.
Solubility:Insoluble in water; soluble in oils, fats, and non-polar solvents.
Polarity:Non-ionic, lipophilic ester — has both hydrophobic fatty acid chain (isostearic acid) and a small hydrophilic diol head (propylene glycol).
Melting / Physical State:May be liquid at room temp or soft waxy-like solid depending on formulation and exact composition; generally behaves like a fatty ester.
Chemical Nature:An ester formed by reacting propylene glycol (a small diol) with isostearic acid (a branched long-chain fatty acid).
Name:Propylene Glycol Isostearate
CAS:63799-53-1 (also seen as 68171-38-0)
EC / EINECS:269-027-5
Molecular Formula:~C₂₁H₄₂O₃
Synonyms:Propylene Glycol Mono-isostearate, Isooctadecanoic acid monoester with propane-1,2-diol
Appearance:Clear to pale yellow liquid/semi-solid
Solubility:Water-insoluble; soluble in oils
Use:Emollient, skin conditioning, surfactant, slip enhancer, mild emulsifier
Safety:Generally safe in cosmetics when properly formulated
Typical Applications:Creams, lotions, sunscreens, shaving products
FIRST AID MEASURES of PROPYLENE GLYCOL ISOSTEARATE:
-Description of first-aid measures:
*If inhaled:
If breathed in, move person into fresh air.
*In case of skin contact:
Wash off with soap and plenty of water.
*In case of eye contact:
Flush eyes with water as a precaution.
*If swallowed:
Never give anything by mouth to an unconscious person.
Rinse mouth with water.
-Indication of any immediate medical attention and special treatment needed:
No data available
ACCIDENTAL RELEASE MEASURES of PROPYLENE GLYCOL ISOSTEARATE:
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Keep in suitable, closed containers for disposal.
FIRE FIGHTING MEASURES of PROPYLENE GLYCOL ISOSTEARATE:
-Extinguishing media:
*Suitable extinguishing media:
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
-Further information:
No data available
EXPOSURE CONTROLS/PERSONAL PROTECTION of PROPYLENE GLYCOL ISOSTEARATE:
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection.
*Skin protection:
Handle with gloves.
Wash and dry hands.
*Body Protection:
Impervious clothing
*Respiratory protection:
Respiratory protection not required.
-Control of environmental exposure:
Do not let product enter drains.
HANDLING and STORAGE of PROPYLENE GLYCOL ISOSTEARATE:
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Store in cool place.
Keep container tightly closed in a dry and well-ventilated place.
Containers which are opened must be carefully resealed and kept upright to prevent leakage.
STABILITY and REACTIVITY of PROPYLENE GLYCOL ISOSTEARATE:
-Reactivity:
No data available
-Chemical stability:
Stable under recommended storage conditions.
-Possibility of hazardous reactions:
No data available
-Conditions to avoid:
No data available
