Sodium Stearate

The sodium salt of stearic acid, used mainly to firm up stick deodorant bases and as a mild cleansing/emulsifying agent; CIR's fatty acid salts review found only minimal to mild irritation in concentrated, undiluted testing and no restriction on cosmetic use.

Cosmetic information for general education, not medical advice. A verdict is a reading of the published evidence, never a guarantee for your skin: any ingredient can irritate someone, so patch test new products and see a professional if you react. Concern is graded on cited evidence, never on hazard-score lists. See how we score.