This effective “leave-on exfoliant” with 10 % AHA offers a brighter, more homogeneous complexion. With age, the cell renewal processes slow down, and the skin becomes thicker, even rough, due to sun damage and other external stress factors. Age spots and an uneven skin tone can appear due to an irregular accumulation of melanin. Glycolic acid sloughs away dead skin cells to reveal a more radiant layer underneath. Skin looks more evenly toned, and it feels firmer and smoother.