NWT Tahari Beauty Vitamin C Lip Masks. Includes 5 masks. These Vitamin C lip masks contain Vitamin C and collagen, the same natural protein found in the skin. These masks will brighten and hydrate damaged lips while helping to firm and shape. This leaves lips feeling and looking beautiful and plump. DIRECTIONS: Clean and dry lips. Tear open pouch and remove mask. Place mask on lips, smoothing out to ensure skin contact. Leave on for 15 minutes. Once complete, remove mask and gently pat in remaining liquid. Dispose mask in trash receptacle (do not flush).