Lauroyl Lysine

Lauroyl Lysine is a lysine amino acid bonded to lauric acid, made as a fine powder that coats pigments and gives makeup a soft, silky slip. It shows up mostly in lipsticks, powders, and eye makeup. CIR reviewed it as part of a group of amino acid alkyl amides, and irritation and sensitization testing on the ingredient itself supported safe use at the concentrations reported, up to 45% in lipstick.

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.