1LED photon therapy, comfortable warm light treatment. 2The energy light penetrate into the base of skin, infuse skin with collagen. 3Blue Light - Soothing inflammation, oil control anti-acne; Wave Length: 477nm, act on the surface of skin. 4Red Light - Sooth wrinkles, smooth skin, activate collagen to increase facial fullness. 5Green Light - Sooth and calms, tightens skin and shrink pores.