murphyPolydimethylsiloxy PEG/PPG-24/19 Butyl Ether Silsesquioxane
molecular structure · PubChem
AKA: Silicone Resin, Hybrid Silicone
Synthetic
Humectant
Cleanser
Skin Conditioner
Not Clean
OriginSynthesized from siloxane polymers and polyethylene glycol/polypropylene glycol copolymers as starting materials. Produced through condensation polymerization and subsequent grafting of butyl ether and silsesquioxane moieties.
Polymers of methyl silsesquioxanes and polyethylene-polypropylene glycol butyl ester
CAS #
68554-65-4
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Skin 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.
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.
Verified Jun 2026
Data: CosIng · EWG · CIR