... extract, hyaluronic acid, Roseessential oil, seaweed polysaccharides.Efficacy:Collagen crystal mask in based on the preparation of L-dimension Vitamin C ... problems.Usage:After cleansing the face, affixed to the face mask, every week 3-4 times usedfor the first time, the ... application time may be extendedStorage method:Keep flat in normal temperature or in frozen( storage at 0°C, thawed under natural ...