LED (light-emitting diode) light therapy is a non-invasive treatment that enters the skin’s layers to improve the skin. In the 1990s, NASA began studying LED’s effects in promoting wound healing in astronauts by helping cells and tissues grow. LED light therapy is used to treat a range of skin issues. Skin specialists often use LED light therapy together with other treatments, such as creams, ointments and facials, to give you the best results.
- Hair loss
- Mild to moderate acne
- Rough, scaly, precancerous spots on the skin (actinic keratosis)
- Sun damage
LED light therapy uses various wavelengths that correspond to different visible colors. Each color penetrates the skin at different depths.
- Blue affects the uppermost layer of your skin.
- Yellow penetrates deeper.
- Red travels further into your skin.
- Near-infrared light penetrates deepest.
Different LED colors do different things. For example, experts believe:
- Red LED light therapy may reduce inflammation and stimulate the production of collagen, a protein responsible for younger-looking skin that diminishes with age.
- Blue LED light therapy may destroy acne-causing bacteria (P. acnes).
During treatment, skin specialists may use a combination of lights to treat your specific issue.