SKIN TYPE: Oily, Combination SKIN CONCERN: Acne, Aging FEATURES An oil-free face serum that improves visible signs of aging while improving acne-prone skin. Blemish + Age Defense is an oil-free, targeted approach for aging and blemished-prone skin. This first-to-market acid blend uniquely combines 2% dioic acid with an optimal alpha- and beta-hydroxy acid formulation to reduce the formation of acne and clogged pores, while improving the appearance of wrinkles, fine lines, and uneven skin tone.