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Polyglyceryl-3 Isostearate
AKA “Polyglyceryl-3 Ester, Emulsifier”
Surfactant
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Ingredient Facts
Polyglyceryl-3 isostearate
AKA: Polyglyceryl-3 Ester, Emulsifier
Surfactant · Emulsifying · EWG: 4
Plant-Derived
Cleanser
Emulsifier
Plant Oil
Not Clean
1,2,3-Propanetriol, homopolymer, isooctadecanoates (1:1) (3 mol glycerol average molar ratio)
CAS #
127512-63-4
See origin →
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Emulsifier
Brightens Skin
Mixes Oil & Water
Traditional Use
A modern synthetic emulsifier created by combining polyglycerin with isostearic acid. Designed to improve product stability and create smooth textures in cosmetic formulations.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Unexpected skin barrier influence from nonionic emulsifiers.
Bárány E, Lindberg M, Lodén M
International journal of pharmaceutics, 2000
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Unexpected skin barrier influence from nonionic emulsifiers.
Bárány E, Lindberg M, Lodén M
International journal of pharmaceutics, 2000
→
Apricot Kernel Oil Polyglyceryl-3 Esters
European Commission
EU Cosmetic Ingredient Database (CosIng)
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Candelilla/Jojoba/Rice Bran Polyglyceryl-3 Esters
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Olive Oil Polyglyceryl-3 Esters
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Palm Oil Polyglyceryl-3 Esters
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Polyglyceryl-3 Isostearate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Rice Bran Oil Polyglyceryl-3 Esters
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Shea Butter Polyglyceryl-3 Esters
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Sunflower Seed Oil Polyglyceryl-3 Esters
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Candelilla/Jojoba/Rice Bran Polyglyceryl-3 Esters
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
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Sunflower Seed Oil Polyglyceryl-3 Esters
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
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Effects of silicone emulsifiers on in vitro skin permeation of sunscreens from cosmetic emulsions.
Montenegro L, Paolino D, Puglisi G
Journal of cosmetic science, 2004
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Structure and rheology of semisolid o/w creams containing cetyl alcohol/non-ionic surfactant mixed emulsifier and different polymers.
Ribeiro HM, Morais JA, Eccleston GM
International journal of cosmetic science, 2004
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Efficient Development of Green Emulsifier/Emollient-Based Emulsion Vehicles: From RSM Optimal Experimental Design to Abridged In Vivo Assessment.
Vukašinović M, Savić S, Cekić N, Ilić T, Pantelić I et al.
Pharmaceutics, 2023
→
Efficient Development of Green Emulsifier/Emollient-Based Emulsion Vehicles: From RSM Optimal Experimental Design to Abridged In Vivo Assessment.
Vukašinović M, Savić S, Cekić N, Ilić T, Pantelić I et al.
Pharmaceutics, 2023
→
Efficient Development of Green Emulsifier/Emollient-Based Emulsion Vehicles: From RSM Optimal Experimental Design to Abridged In Vivo Assessment.
Vukašinović M, Savić S, Cekić N, Ilić T, Pantelić I et al.
Pharmaceutics, 2023
→
Efficient Development of Green Emulsifier/Emollient-Based Emulsion Vehicles: From RSM Optimal Experimental Design to Abridged In Vivo Assessment.
Vukašinović M, Savić S, Cekić N, Ilić T, Pantelić I et al.
Pharmaceutics, 2023
→
Efficient Development of Green Emulsifier/Emollient-Based Emulsion Vehicles: From RSM Optimal Experimental Design to Abridged In Vivo Assessment.
Vukašinović M, Savić S, Cekić N, Ilić T, Pantelić I et al.
Pharmaceutics, 2023
→
Tailoring the Stability of W/O/W Liquid Foundations: A Comparative Study of Polyglycerol-Based W/O Emulsifiers.
Zhu C, Zeng L, Xie Z, Luo G, Chung LH et al.
ACS omega, 2026
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Tailoring the Stability of W/O/W Liquid Foundations: A Comparative Study of Polyglycerol-Based W/O Emulsifiers.
Zhu C, Zeng L, Xie Z, Luo G, Chung LH et al.
ACS omega, 2026
→
Tailoring the Stability of W/O/W Liquid Foundations: A Comparative Study of Polyglycerol-Based W/O Emulsifiers.
Zhu C, Zeng L, Xie Z, Luo G, Chung LH et al.
ACS omega, 2026
→
Tailoring the Stability of W/O/W Liquid Foundations: A Comparative Study of Polyglycerol-Based W/O Emulsifiers.
Zhu C, Zeng L, Xie Z, Luo G, Chung LH et al.
ACS omega, 2026
→
Tailoring the Stability of W/O/W Liquid Foundations: A Comparative Study of Polyglycerol-Based W/O Emulsifiers.
Zhu C, Zeng L, Xie Z, Luo G, Chung LH et al.
ACS omega, 2026
→
Tailoring the Stability of W/O/W Liquid Foundations: A Comparative Study of Polyglycerol-Based W/O Emulsifiers.
Zhu C, Zeng L, Xie Z, Luo G, Chung LH et al.
ACS omega, 2026
→
Verified Jun 2026
Data: CosIng · EWG · CIR