Sodium Ricinoleate
molecular structure · PubChem
AKA: 5323-95-5, Colidosan, Sodium ricinate, Soricin, Ricinoleic acid, Sodium salt, Ricinoleic acid salt, CCRIS 5930
Synthetic
Cleanser
Emulsifier
Plant Oil
Clean
Ricinoleic acid, sodium salt is a white powder. (NTP, 1992)
Solubility Soluble (NTP, 1992)
Formula
C18H33NaO3
Mol. Weight
320.40
CAS #
5323-95-5
State
Ricinoleic acid, sodium salt is a white powder. (NTP, 1992)
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Surfactant Emulsifying
Strengthens Barrier
Removes dirt and impurities
Mixes oil and water
Traditional Use
The sodium salt of ricinoleic acid from castor oil. Used historically as a natural soap and cleanser, and later incorporated into modern cosmetic formulations as an emulsifier.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR