What Is PEG/PPG-32/8 TETRAMETHYL ETHER PENTAERYTHRITOL?
A complex polyether derived from pentaerythritol, fully etherified with methyl groups and chain-extended with PEG (32 units) and PPG (8 units). This high-molecular-weight polymer functions as a water-soluble emollient and humectant in cosmetic products, providing a smooth, cushiony feel and helping to retain moisture on the skin's surface.
+ Smooth, cushiony texture — improves sensory profile of gels and creams
+ Film-forming — creates a light protective barrier on skin
Pros
+ CIR-reviewed — safe in cosmetic use
+ Non-comedogenic — suitable for face products
+ Water-soluble — easy to formulate
+ Multi-functional — acts as emollient, humectant, and texture enhancer
Cons
− Fully synthetic — not for natural formulations
− Large molecule — sits on skin surface rather than penetrating
− Limited individual safety data
Specifications
Property
Value
Usage Areas
Face, Eye, Body
Product Type
Leave-On, Rinse-Off
Source
Synthetic
Natural Level
Synthetic
Safety Ratings
Metric
Rating
Skin Sensitivity
1/5 (very low)
Comedogenic Rating
0/5
EWG Score
1/10
Regional Regulatory Limits
Region
Leave-on %
Rinse-off %
Status
EU (CosIng)
No limit
No limit
Allowed
US (CIR/FDA)
No limit
No limit
Allowed
Japan (MHLW)
No limit
No limit
Allowed
ASEAN
No limit
No limit
Allowed
China (NMPA)
No limit
No limit
Allowed
Typical Usage % by Product Type
Product Type
Typical %
Serums / essences
0.5-3%
Gel creams
0.5-2%
References
CIR (Cosmetic Ingredient Review) — Safety Assessment of PEG and PEG Derivatives as Used in Cosmetics. Published in International Journal of Toxicology.
CosIng (2025) — European Commission Cosmetic Ingredient Database. https://ec.europa.eu/growth/tools-databases/cosing/
EWG Skin Deep — Cosmetic Ingredient Hazard Score. https://www.ewg.org/skindeep/
Personal Care Products Council (PCPC) — INCI Monograph and Safety Data.