undefined 1
undefined 2
undefined 3
undefined 4
undefined 5
undefined 6
undefined 7
Polyglyceryl-6 Sesquiisostearate
AKA “Diglycerin distearate, 1XAX7BOH4W, DIGLYCERYL DISTEARATE, STEARIC ACID, DIESTER WITH DIGLYCEROL, 63119-59-5, 9009-32-9, Polyglyceryl stearate, RefChem:175151, UNII-1XAX7BOH4W, UNII-1Z95EWX28V”
Surfactant
Ingredient Facts
Polyglyceryl-6 sesquiisostearate
AKA: Diglycerin distearate, 1XAX7BOH4W, DIGLYCERYL DISTEARATE, STEARIC ACID, DIESTER WITH DIGLYCEROL, 63119-59-5, 9009-32-9, Polyglyceryl stearate, RefChem:175151, UNII-1XAX7BOH4W, UNII-1Z95EWX28V
Surfactant · Emulsifying · EWG: 4
Plant-Derived
Cleanser
Emulsifier
Plant Oil
Not Clean
Mono/diesters of hexaglycerol and isostearic acid
Formula
C42H82O7
Mol. Weight
699.10
CAS #
9009-32-9
See origin →
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Emulsifier
Mixes Oil & Water
Traditional Use
A modern synthetic emulsifier derived from polyglycerin and isostearic acid. Used in cosmetics to create stable emulsions with improved texture and conditioning properties.
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
Amended Final Report on the Safety Assessment of Hydroxystearic Acid
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Final Report on the Safety Assessment of Isostearic Acid
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Final Report on the Safety Assessment of Oleic Acid, Lauric Acid, Palmitic Acid, Myristic Acid, and Stearic Acid
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Final Report: Safety Assessment of Polyhydroxystearic Acid, Poly(3-Hydroxyoctanoic Acid, and Polylactic Acid as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Re-evaluation: Safety Assessment of Hydroxystearic Acid as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
10-Hydroxystearic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Polyglyceryl-6 Sesquiisostearate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Polyhydroxystearic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Stearic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Hydroxystearic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Isostearic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Polyhydroxystearic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Stearic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Simultaneous contact sensitivity to hydroxystearic acid and C18-36 acid triglyceride in lip glosses.
Kimura M, Kawada A, Ogino M, Murayama Y
Contact dermatitis, 2002
→
Microemulsions based on TPGS and isostearic acid for imiquimod formulation and skin delivery.
Pescina S, Garrastazu G, Del Favero E, Rondelli V, Cantù L et al.
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 2018
→
Bio-derived hydroxystearic acid ameliorates skin age spots and conspicuous pores.
Schütz R, Rawlings AV, Wandeler E, Jackson E, Trevisan S et al.
International journal of cosmetic science, 2019
→
Bio-derived hydroxystearic acid ameliorates skin age spots and conspicuous pores.
Schütz R, Rawlings AV, Wandeler E, Jackson E, Trevisan S et al.
International journal of cosmetic science, 2019
→
Bio-derived hydroxystearic acid ameliorates skin age spots and conspicuous pores.
Schütz R, Rawlings AV, Wandeler E, Jackson E, Trevisan S et al.
International journal of cosmetic science, 2019
→
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR