Polyglyceryl-15 Diisostearate
molecular structure · PubChem
Plant-Derived
Cleanser
Skin Conditioner
Hair Care
Not Clean
Polyglyceryl-15 Diisostearate is a diester of Isostearic Acid and a glycerin polymer containing 15 glycerin units.
Form
Liquid
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Removes Impurities
Conditions Hair
Cleansing Surfactant
Removes dirt and impurities
Lifts away dirt and oil
Softens and detangles hair
Traditional Use
Developed in the mid-20th century as a synthetic polyglyceryl ester emulsifier with higher glycerin content. Used in cosmetics to improve formula stability and texture.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR