Polyglyceryl-3-Diisosterate ●
TL;DR. This ingredient is a nonionic emulsifier used mainly to build water-in-oil emulsions and improve pigment dispersion in makeup, sunscreen, and rich creams. It helps stabilize oil-heavy formulas and gives a smoother, more cushiony feel.
What does Polyglyceryl-3-Diisosterate do in a cosmetic formula?
This ingredient is a nonionic emulsifier used mainly to build water-in-oil emulsions and improve pigment dispersion in makeup, sunscreen, and rich creams. It helps stabilize oil-heavy formulas and gives a smoother, more cushiony feel.
Is Polyglyceryl-3-Diisosterate clean?
From a clean-beauty perspective, it is generally well accepted because it is PEG-free, low in irritation potential, and not a common allergen. The main quality consideration is ensuring good raw-material purity and responsible fatty feedstock sourcing.
Is Polyglyceryl-3-Diisosterate sustainable?
This material is commonly made from glycerin-derived and fatty-acid-derived inputs that may be vegetable based, though the exact source depends on the supplier. It is expected to be biodegradable and has low persistence concerns compared with silicone or fluorinated film-formers.
Is Polyglyceryl-3-Diisosterate COSMOS-approved?
It is generally compatible with COSMOS-natural and COSMOS-organic standards when made from permitted feedstocks and processing routes. Its profile fits Green Chemistry reasonably well because it can use renewable inputs, has a favorable biodegradation profile, and performs without ethoxylation.
How does Polyglyceryl-3-Diisosterate work chemically?
The molecule is a nonionic ester with a three-unit glycerin-derived backbone and two branched C18 fatty chains, giving it a low HLB and strong oil-phase affinity. Typical use is about 1 to 5% for emulsification or pigment wetting, and it is usually processed in the oil phase with good heat stability under normal cosmetic manufacturing conditions.
Last updated 2026-05-13