Polydimethylsiloxy PPG-13 Butyl Ether Silsesquioxane

Polydimethylsiloxy PPG-13 Butyl Ether Silsesquioxane molecular structure
molecular structure · PubChem
AKA: Silicone Resin, Hybrid Silicone
Synthetic
Humectant
Cleanser
Skin Conditioner
Hair Care
Not Clean
OriginSynthesized from dimethylsiloxane polymers and polypropylene glycol butyl ether as starting materials. Produced through condensation polymerization to create a silsesquioxane-based copolymer structure.
Polymer of dimethyl silsesquioxanes and polypropylene glycol butyl ester
CAS #
-
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Locks In Moisture
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2017
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR