Direct hits of light at these wavelengths cause hardly discernible damage on the outer layers of skin. As skin “heals” from this damage, it kickstarts tissue repair that works to combat the various issues that red and blue light therapy can work to treat. Red light therapy can help rebuild collagen, mend the effects of sun damage, and treat scars as well as more advanced skin conditions. Blue light therapy can improve skin texture, reduce hyperplasia, target and minimize acne and acne scars, and remove sunspots. Both forms of light therapy offer psychological benefits as well, like producing natural energy (blue light) or helping you relax (red light).