Polyglyceryl-10 Decaisostearate
What is Polyglyceryl-10 Decaisostearate?
Polyglyceryl-10 decaisostearate is an ester compound formed by linking polyglycerol-10 with ten molecules of isostearic acid. Polyglycerol-10 arises from the polymerization of glycerol, a simple polyol abundant in nature and skin's natural moisturizing factor. Isostearic acid, a saturated branched-chain fatty acid, derives from the oxidation of unsaturated vegetable oils such as olive or rapeseed. This ingredient falls into the polyglyceryl ester family, primarily employed in cosmetics as a surfactant-emulsifying agent for water-in-oil emulsions. It functions by lowering interfacial tension between immiscible phases, promoting droplet dispersion and preventing separation for long-lasting product stability. Its emollient nature also lubricates the skin surface, enhancing spreadability and imparting a velvety texture in items like foundations, lipsticks, and protective creams.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Provides a smooth, soft feel by mimicking skin lipids.
Supports emulsion stability in creams and makeup for even application.
Helps maintain product integrity without heavy greasiness.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Individuals with dry skin needing gentle softening agents. | Those with known allergies to fatty acid esters. |
| Users of water-in-oil products like sunscreens or foundations. | Individuals avoiding semi-synthetic emulsifiers. |
| People seeking stable, non-separating cosmetic formulations. | People sensitive to branched-chain fatty acids. |
Safety Notes
- Deemed safe for cosmetic use by Cosmetic Ingredient Review when nonirritating.
- Rated low overall hazard by Environmental Working Group.
Frequently Asked Questions about Polyglyceryl-10 Decaisostearate
What is polyglyceryl-10 decaisostearate made from?
It combines polyglycerol-10 from glycerol with isostearic acid from vegetable oils.
Is it suitable for sensitive skin?
Safety reviews indicate it is mild and nonirritating in typical formulations.
Does it cause acne?
It has a comedogenic rating of zero, suggesting minimal acne risk.