What it is
Glyceryl/Polyglyceryl-6 Isostearate/Behenate Esters is a mixed ester system pairing glycerin and polyglyceryl-6 with isostearic and behenic fatty acids. The polyglyceryl portion gives it surfactant character, allowing it to act as a non-ionic emulsifier, while the fatty-acid esters add emollience. In sunscreens it helps form and stabilize emulsions and improves skin feel.
Safety & warnings
As a non-ionic polyglyceryl emulsifier it is generally considered mild and well tolerated, and it is not a recognized fragrance allergen. Its fatty-ester content adds richness, so very acne-prone users may want to note how heavier formulas containing it perform.
Origin & sourcing
Synthetic ester blend made by combining glycerin and polyglycerin with isostearic and behenic acids; the fatty acids are commonly of vegetable origin.
Questions everyone asks
What role does it play in a formula?
It serves mainly as a non-ionic emulsifier that keeps oil and water blended, while also conditioning the skin.
Is polyglyceryl-based emulsifier gentle?
Polyglyceryl emulsifiers are generally regarded as mild, non-ionic options often chosen for their good skin compatibility.