Wholesale Masks - Nu PoreCollagen Essence Facial Tissue Masks. Contains 1 vitamin E mask for toning, hydrating and rejuvenating and 1 green tea for nourishing, relaxing and clarifying. Collagen Essence Mask is specially formulate mask with highly concentrated natural ingredients which penetrate into skin. It makes your tired skin moistened, elastic, and clear, relieving your skin from stress. Recommended use 2-3 times per week. 2 masks per box packed 24 per case.