3 colors led facial mask whitening skin anti-Aging wrinkle removal tighten light therapy facial care treatment beauty tool device Led light photon therapy: Red light: 620nm-750nm 1. Whitening your skin and reducing fine lines. 2. Shrink your pores and smooth your skin. 3. Improve problem skin and repair blemished skin. 4. Lock water and hydrate skin, reduce skin sensitivity. Blue light: 470nm-495nm 1. Smooth skin, rejuvenate sensitive skin. 2. Increase your skin elasticity, tighten your skin. For tender, dark, uneven color, wrinkles, coarse pores, dry, dull and loose facial skin. Yellow light: 590nm-620nm 1. Through the skin 3-5mm, strengthen your muscles and immune system. 2. Restores the balance of sensitive skin. 3. Increase skin elasticity, tighten skin.