active
Potassium Alum
Generally safe·Strong evidence
A natural mineral salt used in deodorants for its mild astringent properties. It is derived from naturally occurring mineral sources and has been used in personal care for centuries.
Products with Potassium Alum
References
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.