This extra strength gel is designed for experienced users of glycolic acid and those who prefer a light, non-greasy and fast absorbing formula. Suitable for oily skin that may be prone to breakouts, and ideal for use in hot, humid climates. Glycolic acid, an alpha hydroxy acid (AHA), helps diminish the appearance of enlarged pores, rough texture and uneven pigment caused by photo aging, and simulates collagen synthesis for firmer, younger looking skin. Recommended for those not sensitive to glycolic acid. Non-greasy, fast absorbing. Exfoliating gel is ideal for oily skin. Fragrance-free. Dermatologist developed.