Sodium Oleate
molecular structure · PubChem
AKA: 143-19-1, Oleic acid sodium salt, Osteum, Eunatrol, Olate flakes, Sodium 9-octadecenoate, Sodium salt, CCRIS 1964
Synthetic
Cleanser
Emulsifier
Plant Oil
Clean
The CIR Expert Panel concluded that the following ingredients are safe in the present practices of use andconcentration described in the safety assessment when formulated to be non-irritating and non-sensitizing, which may be basedon a QRA...Sodium Oleate...
Solubility IN WATER: 10 G/100 CC @ 12 °C; SLIGHTLY SOL IN ETHER
Formula
C18H33NaO2
Mol. Weight
304.40
CAS #
143-19-1, 16558-02-4
State
Oleic acid, [sodium salt] is a light tan solid with a slight tallow-like odor. Sinks and mixes slowly with water. (USCG, 1999)
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
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.
Viscosity Controlling
Removes Impurities
Cleansing Surfactant
Emulsifier
Controls Viscosity
Antioxidant Protection
Locks In Moisture
Traditional Use
Derived from oleic acid found in olive oil and other plant oils used for millennia in soap-making. Traditional olive oil soaps date back to ancient Mesopotamia and Egypt, where they were valued for gentle cleansing.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR