WHAT IT IS: A face mask that works like a facial, with potent PHAs and Nordic birch sap to exfoliate, illuminate, and brighten skin. 1.7 oz. 50ml. New in Box! *Powered by PHAs (polyhydroxy acids), this one-step, massage-activated face mask reduces the look of pores, dark spots, fine lines, and wrinkles, revealing smoother, more luminous skin.