Brand from South Korea: By Wishtrend. Contains 21.5% vitamin to maximize the results of whitening, moisturizing, calming and anti-aging. NO parabens, Benzophenone, Phtalate, Ethanol, Phenoxyethanol, Mineral oils, Triethanolamine, Surfactants, Artificial colorants, Artificial perfumes. How to use: 1. After using the vitamin serum, use the Natural Vitamin 21.5 Enhancing Sheet Mask about 1-2 times a week. 2. Place the sheet on your face. 3. After 15-20 minutes, remove the sheet and dab the remaining essence on the face gently for better absorption.