Red Light:Promoting collagen proliferation,improving wrinkles,effective treatment of aging. Yellow Light:Curing skin roughness,Red spots and deficient circulations,red face,pigment precipitation. Blue light:Bacteria Killing,Skin Cleaning,Cell activation,Acne skin sterilization. Infrared Light:Boost Collagen,Smooth wrinkles,enhance tone，Lipo Laser:Remove stubborn pockets of fat，The Device including:Led photons Mask,Adapter,Support pillow. Return Polity：One Month Free Return and replacement One Year Warranty Professional US custmer support If you have any problems, please feel free contact seller Thanks!