This serum visibly clears stubborn blackheads while shrinking the appearance of pores. The serum contains dermatologist-grade 10% Glycolic + Mandelic + Polyhydroxy Acid Complex. Designed to blend effortlessly on all skin tones under moisturizer and/or makeup, the formula absorbs quickly leaving the skin feeling balanced, healthy-looking and less oily while reducing the appearance of redness and size of pimples without over drying.