The main active ingredient in the MANDELAC line is Mandelic Acid. Its an alpha-hydroxy acid with a larger molecule than glycolic acid, so its slow penetration doesnt cause irritation, making it especially suitable for sensitive skin. It is encapsulated in liposomes and has anti-aging, sebum-regulating, and depigmenting properties. It also exhibits antimicrobial activity, making it especially suitable for acne-prone skin. Apply the product to your face with a gentle massage until completely absorbed. Day/night. Mandelic acid (liposomal and free), malus domestica stem cells, plant extracts (aloe, green tea and chamomile) and vitamin E.