Alpha Lipoic Acid

A sulfur-containing antioxidant that functions both inside and outside cells, studied for anti-aging effects in cosmetics. Published safety assessments support low irritation at typical cosmetic concentrations, though some users may experience mild irritation or sensitivity at higher doses or when combined with other active ingredients.

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.