This piece mask contains advanced whitening technology  Effectively reduces melanin process & formation of dark spots  Fights against pigmentation after sun exposure  Elastic fiber fits face well & delivers whitening essence deep into skin  Works well & brings out a whitened skin tone  Leaves a soft, crystal clear & luminous complexion  To use: Fit the mask onto face & leaves on 5-15 minutes. Do not cleanse face afterward to maintain the whitening effect 