5 days anti-wrinkle crystal facial mask 1)high content collagen 2)obvious in anti-wrinkle 3 ... UsageWith warm water clean facial skin, then put mask onto face, gently pat face.15-20 minutes ... later, peel off mask, excess liquid gently pat absorption or rinse then ... hot weather, can be put in freezer refrigeration crystal face film, use feeling more comfortable Packing ...