Save (Ur Pretty) Face Screen ProtectorSave Your Face: Protects your skin from the harmful effects of high energy visible light (HEV) Minimizes the blue light impact on your natural sleep rhythm Provides a defense for the collagen and elastin levels in your dermis against the attack from blue light Anti microbial silver ions keep your screen and skin clear of bacteria We spend an average of 4 7 hours a day on our phones. The effects of blue light exposure are cumulative and can add up