Glow Glycolic Boost Fabric Masks Glow 3pcs. Contains glycolic acid to gently remove dead skin cells and reveal a radiant complexion. The ginseng improves circulation and leaves skin beautifully glossy. Hyaluronic acid moisturises and protects. Directions for use: apply to clean skin, leave on for 10-15 mins, massage excess serum into skin. For an intense refreshing effect, keep the mask in the refrigerator beforehand. In case of products with glycolic acid, we recommend to use products with SPF during the day.