The benifit of 7 Color Led Light : red light therapy lights of photodynamic therapy boost collagen production, anti-aging; Blue light of led light mask kills acne-causing bacteria; Green Light of led face masks Reduce spots, freckles, reddish or brown patches; Yellow Light Reduce inflammation, redness; Purple Light Eliminate toxins, promote cell regeneration; Cyan Light Treats inflammation, clears the skin, and prevents acne; White Light Promote skin tightening, fade fine lines and wrinkles.