KOCOSTAR 4 mask kit features four special sheet masks targeted to different skin needs. This kit is the perfect gift for any sheet mask lover. Hyaluronic acid: Formulated with 6 different hyaluronic acids to hydrate dry, dehydrated skin. Collagen: Formulated with plant collagen from rice, soybean, carrot, quinoa and ginseng extracts, this mask will help moisturize and smooth the skin. Tea Tree: Formulated with tea tree leaf extract, this mask will calm and moisturize the skin. Vitamin: Formulated with grapefruit and lemon extracts, this mask will brighten dull skin.