A medicated penetration*2 serum containing W's active ingredients niacinamide and 2K*1 polycyrrhizic acid. ※1: Potassium Glycyrrhizinate, ※2: Up to keratin[Active ingredients] niacinamide, potassium polycylrhizinate water, BG, concentrated glycerin, retinol oil, hydrolyzed collagen powder, rice germ oil, lactic acid, hydroxylated soybean phospholipid, alkynin, carboxybenzyl polymer, glycerine mono-2-ethylhexyl ether, polyoxyethylene phytosterol, phenoxyethanol, fragrance[How to use] After cleansing your face, take an appropriate amount (2 to 3 pushes) in the palm of your hand and gently apply it all over your face. Recommended for neck and neck. Can be used in the morning and evening. To request a return or exchange, please note that it is mandatory to provide a video of the unpacking of the package.