An oil-free face serum that improves visible signs of aging while improving acne-prone skin. LHA Serum is an oil-free, targeted serum for aging & acne-prone skin. This first-to-market acid blend uniquely combines LHA, salicylic acid, glycolic acid and dioic acid to reduce excess sebum production, prevent clogged pores, improve the look of acne-prone skin, wrinkles, uneven skin tone, and texture.