Red light wavelengths affect bodily cells on a biochemical level by increasing mitochondrial function – the ability to produce cellular energy. The more cellular energy production, the better the body functions as a whole. When red light wavelengths are used on the skin’s surface, they penetrate 8-10 millimeters into the skin. So depending upon where the red light is deployed (head or knee, for instance), all of the surrounding skin layers, blood vessels, lymph pathways, nerves, and even hair follicles are affected.
Red light therapy works from the inside-out to enhance mitochondrial function in cells. This, in turn, leads to several skin benefits. Red light decreases skin inflammation, smooths skin tone, repairs sun damage, fades scars and stretch marks, and even builds collagen in the skin, which reduces wrinkles. It also heals wounds and can prevent recurring cold sores or herpes simplex. Red light works on the lymphatic system to improve your body’s detoxification abilities by increasing blood flow. It may even stimulate hair growth in your hair follicles.
Here’s a partial list of the evidence based uses of red therapy light:
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