Dr. LeWinn's Ultra R4 Collagen Surge Overnight Sleep Mask is a mask with double the serum power. It features a dual chamber delivery system that isolates the two serums in the bottle - Collagen Plumping Serum and Peptide Energising Serum - to preserve the purity and potency of ingredients until just before application. It contains ingredients that help to repair skin while you sleep: Collagen Peptides to lift, firm and plump; Dreamscentz™ technology to help improve the quality of sleep; Dawnergy™ to awaken skin to reveal morning radiance; and Synchrolife™ to counteract harmful effects of digital pollution while working with the skin’s natural circadian rhythm. Clinically tested with proven results after one week and 28 days.