Four targeted overnight masks, one glow-boosting set. This assorted hydrogel mask pack melts into skin while you sleep to hydrate, smooth, firm, brighten, and visibly refine for radiant morning skin..No-slip, no-drip design for comfortable 3+ hour or overnight wear.Formulated without parabens, sulfates, phthalates, and drying alcohols.Not tested on animals.4 pieces.Apply one mask to clean, dry skin. Leave on for at least 3 hours or overnight. .Remove and gently pat remaining essence into skin. .Use as needed as the final step in your nighttime skincare routine.