 It enhances muscle recovery, alleviates pain, and accelerates wound healing. And a lot of these other ones do the same as well. So if you are looking to reduce your acne or veins that are on the surface of your skin, green, yellow light, and blue light will do that. They won't penetrate too far into your skin. They'll go probably just a little bit under. And that will help you with bacteria on the skin, like I said, veins, and acne that you don't want.