The Physiodermie High Putity is a highly concentrated serum with a fluid texture. Allows an easy application alone or in synergy. Ideal for skin with impurities (acne, blackheads, dilated pores, acne scars). Deeply purifies the skin and makes the skin look clean and healthy by preventing it from blackheads and clogging. What makes the difference: Salicylic Acid exfoliates and is known for its antibacterial properties. Zinc Gluconate soothes and heals the skin.