murphyTrioleyl Phosphate
AKA: Hostaphat KO 300, 3305-68-8, NIKKOL TOP-0, 9-Octadecen-1-ol, Phosphate (3:1), 9-OCTADECEN-1-OL, PHOSPHATE (3:1), 1''-PHOSPHATE
Synthetic
Emollient
Skin Conditioner
Not Clean
OriginDerived from oleic acid, a fatty acid typically sourced from animal fats or vegetable oils through esterification. Synthesized by esterifying oleic acid with phosphoric acid and glycerol under controlled chemical conditions.
The CIR Expert Panel concluded the following 28 alkyl phosphates are safe in the present practices of use and concentration in cosmetics when formulated to be non-irritating...Trioleyl Phosphate...
Formula
C54H105O4P
Mol. Weight
849.40
CAS #
3305-68-8
Form
Powder
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
Plasticiser
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.
Locks In Moisture
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: PubChem · CosIng · EWG · CIR