PEG-150 Pentaerythrityl Tetrastearate
AKA “PEG-150 Pentaerythrityl Tetrastearate, Emulsifier
Surfactant
Ingredient Facts
Peg-150 pentaerythrityl tetrastearate
AKA: Emulsifier
Surfactant · Emulsifying · EWG: 2
Plant-Derived
Cleanser
Emulsifier
Clean
2,2-Bis(hydroxymethyl)-1,3-propanediol, ethoxylated, tetraoctadecanoates (150 mol EO average molar ratio)
CAS #
130249-48-8
See origin →
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Emulsifier
Antioxidant Protection
Reduces Inflammation
Mixes Oil & Water
Traditional Use
A synthetic polyethylene glycol-based emollient developed for cosmetics in the late 20th century. Created to provide conditioning properties and improved spreadability in modern skincare products.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
2
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Unexpected skin barrier influence from nonionic emulsifiers.
Bárány E, Lindberg M, Lodén M
International journal of pharmaceutics, 2000
Unexpected skin barrier influence from nonionic emulsifiers.
Bárány E, Lindberg M, Lodén M
International journal of pharmaceutics, 2000
Safety Assessment of PEG-150 Pentaerythrityl Tetrastearate as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
PEG-150 Pentaerythrityl Tetrastearate
European Commission
EU Cosmetic Ingredient Database (CosIng)
PEG-150 Pentaerythrityl Tetrastearate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Safety Assessment of PEG-150 Pentaerythrityl Tetrastearate as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2018
Safety Assessment of PEG-150 Pentaerythrityl Tetrastearate as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2018
Safety Assessment of PEG-150 Pentaerythrityl Tetrastearate as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2018
Safety Assessment of PEG-150 Pentaerythrityl Tetrastearate as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2018
Safety Assessment of PEG-150 Pentaerythrityl Tetrastearate as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2018
Safety Assessment of PEG-150 Pentaerythrityl Tetrastearate as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2018
Safety Assessment of PEG-150 Pentaerythrityl Tetrastearate as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2018
Safety Assessment of PEG-150 Pentaerythrityl Tetrastearate as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2018
Safety Assessment of PEG-150 Pentaerythrityl Tetrastearate as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2018
Safety Assessment of PEG-150 Pentaerythrityl Tetrastearate as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2018
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
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
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
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