PDRN is one of Korean skincare's biggest trends, used for a smoother, more radiant looking complexion. Look for serums, jelly mists, masks and creams. Popular picks include the medicube PDRN Pink Collagen line, Anua PDRN Hyaluron Capsule Mist, Biodance Caviar PDRN Jelly Serum Mist and numbuzin Rose PDRN Collagen Serum.