Mandelic Acid is an alpha-hydroxy acid that is naturally derived from bitter almonds. The molecular structure of mandelic acid is larger than most other AHAs. The larger molecule means mandelic acid causes less irritation with less erythema. ITB’s Mandelic Serum 15% has antibacterial properties, regulates sebum production to help prevent the recurrence of acne outbreaks, clears pores, exfoliates, and increases cell turnover. It is very beneficial in treating acne, reducing the appearance of fine lines and wrinkles in mature skin, and diminishing pigmentation issues. Azelaic/Mandelic Serum is ALCOHOL-FREE! Acne – Has antibacterial properties, regulates sebum production, clears pores prevents recurrence of acne hyperpigmentation and Melasma – Breaks up discoloration caused by sun damage, PIH, and hormonesAnti-Aging – Encourages exfoliation and reduces fine line ingredients to help skin retain moisture by up to 84%