LED (light emitting diode) therapy, also known as photobiomodulation therapy, has been used for decades for the treatment of an array of medical conditions. It has more recently been used for skin rejuvenation and wound healing. This therapy is completely non-invasive, allowing light to penetrate the skin and transfer into cell energy to provide healing and soothing effects.
Within LED therapy, varying benefits are provided by blue light, red light and near infrared. The different colors of light presented are produced by specific wavelengths that provide different but synergistic aid to the skin. The penetration of these distinct wavelengths affect different cells and tissue at specific depths.
BLUE LIGHT
Blue light (between 400-470nm) has a more shallow penetration, affecting the epidermis and is most commonly used to treat acne conditions, eradicating bacteria associated with acne.
RED LIGHT
Red light (630-700nm) helps to reduce inflammation and diminish signs of fine lines and wrinkles as it has been shown to stimulate the production of collagen and improve skin elasticity
NEAR INFRARED
Near infrared light (700-1200nm)has a deeper penetration, helping to reduce puffiness and aches and pains in the body.
LED light therapy is quickly becoming the go to option for rejuvenating the skin and helping people look younger and more vibrant. This therapy is commonly used on areas of the face, neck, décolleté and chest, though it can be used on the entire body. LED can be utilized in conjunction with other treatments, enhancing their positive effects, or on a regular basis on their own, though individual results will vary depending on frequency of use.
RESOURCES
1) "Low Level Laser (Light) Therapy (LLLT) for Cosmetic Medicine and Dermatology,” Mossum K. Sawhney and Michael R. Hamblin, 2014
2) "Photodynamic and photobiological effects of light-emitting diode (LED) therapy in dermatological disease: an update,” Elisabetta Sorbellini and Mariangela Rucco and Fabio Rinaldi, 2018
3) "Keys to Effective Low Level Light Therapy (LLLT),” Ryan Spitler, Stanford University School of Medicine, 2016
4) "Mechanisms of Low Level Light Therapy,” Michael R. Hamblin, Department of Dermatology, Harvard Medical School, 2013