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Polyglyceryl-3 Diisostearate

Approved Ingredients
Polyglyceryl-3 Diisostearate

Polyglyceryl-3 Diisostearate

Polyglyceryl-3 diisostearate is a plant-derived ingredient, usually appearing as a yellow syrupy liquid with a mild waxy aroma. This ingredient can be used as an emulsifier, aiding the mixing of water and oil ingredients by reducing their surface tension.

Polyglyceryl-3 diisostearate can be derived from stearic acid (a saturated fatty acid from coconut/palm) and polyglycerin-3 (vegetable oil component). It's known to be gentle and moisturising for skin, and can also be used to help disperse pigment in formulations. This ingredient is commonly used in leave-on skin care, cosmetics and baby care products.

Other names: Triglycerin Diisostearate; Isooctadecanoic Acid, Diester with Triglycerol

Chemical class: Glyceryl Esters and Derivatives


Cosmetic Ingredient Review Expert Panel (2016). Safety Assessment of Polyglyceryl Fatty Acid Esters as Used in Cosmetics.

National Center for Biotechnology Information (2022). PubChem Substance Record for SID 135320872, 63705-03-3, Source: ChemIDplus.

INCI Name:
Polyglyceryl-3 Diisostearate
Ingredient origins:
Coconut, Oil Palm
Emollient, Emulsifying Agent
Common name:
Polyglyceryl-3 Diisostearate
EWG score: The EWG score is a hazard score ranging from 1-2 (low hazard), 3-6 (moderate hazard) and 7-10 (high hazard) published by the Environmental Working Group. Their data is sourced from the Skin Deep® database and studies published in open scientific literature.