Oleic Acid
Approved
Fatty Acid; Emollient
Also Known As
cis-9-Octadecenoic Acid; Omega-9 Fatty Acid
CAS Number
112-80-1
What It Does
Softens skin and contributes to lipid-based formulations.
Why Oh Daisey Rates It This Way
Naturally occurring fatty acid widely used in cosmetics. High concentrations can alter barrier function or irritate some sensitive skin, but normal formulated use is generally considered safe.
Evidence Level
Strong