... extract, hyaluronic acid, Roseessential oil, seaweed polysaccharides. Efficacy:Collagen crystal mask in based on the preparation of L-dimension Vitamin C ... black, yellow,dry, coarse, wrinkled skin problems. Usage:After cleansing the face, affixed to the face mask, every week 3-4 times ... extended Storage method:Keep flat in normal temperature or in frozen( storage at 0°C, thawed under natural before to ...