The TONYMOLY Mask Melt Collagen + Peptide Overnight Hydrogel Mask will deliver deep, continuous moisture while you sleep for firmer, smoother skin. The ultra-absorbent hydrogel mask hugs the skin for mess-free overnight wear, infusing skin with hydration and supporting barrier recovery. .No-drip, pillow-safe hydrogel 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.