PEG-20 Evening Primrose Glycerides
AKA “Polyethylene glycol 20 evening primrose glycerides, PEG 20 evening primrose glycerides”
Synthetic
Ingredient Facts
Peg-20 evening primrose glycerides
AKA: Polyethylene glycol 20 evening primrose glycerides, PEG 20 evening primrose glycerides
Synthetic · Emollient · EWG: 4
Plant-Derived Synthetic
Emollient
Cleanser
Emulsifier
Skin Conditioner
Plant Oil
Synthetic
Clean
A plant-based ingredient derived from evening primrose oil that helps blend oils and water together, creating a smooth, unified texture in the formula.
CAS #
124046-44-2
Form
Liquid
See origin →
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Surfactant Emulsifying
Moisturizing
Locks in moisture to keep skin soft and supple throughout the day
Strengthens Barrier
Mixes oil and water
Traditional Use
Evening primrose oil has been used in traditional European herbalism for hormonal balance and skin health since the 1980s when its gamma-linolenic acid content was scientifically documented. The PEG-20 version is a modern synthetic modification created to make the oil water-soluble for cosmetic formulations.
Skin Types
●all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Insufficient
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Agencies
Verified Feb 2026
Data: CosIng · EWG · CIR