Health Benefits & Science of Red Light Therapy

Joint Health and Pain Management

Red light therapy is now being used to treat arthritis symptoms thanks to its capability of stimulating collagen production and rebuilding cartilage. A 2009 Cochrane review of red light therapy for rheumatoid arthritis concluded that “Red light could be considered for short-term treatment for relief of pain and morning stiffness for RA patients, particularly since it has few side-effects.” 

Even in those who don’t suffer from arthritis but have other signs of tissue damage or degeneration due to aging, red light can still be beneficial. A 2009 study published in The Lancet showed, “Red light reduces pain immediately after treatment in acute neck pain and up to 22 weeks after completion of treatment in patients with chronic neck pain.”  Other studies have found that even when patients with musculoskeletal disorders don’t experience less pain from red light therapy treatments, they have a high chance of experiencing “significantly improved functional outcomes,” such as better range of motion. 

Cellular rejuvenation and increased blood flow due to red light therapy are two key aspects of improving joint and tissue health. Decreasing oxidative damage, which degenerates joints, and modulating inflammation are other ways that red light benefits soft/connective tissue.

Skin Health And Anti-Aging Renewal. Rosacea and Eczema Treatment

One use of red light therapy that’s growing in popularity is reversing signs of aging on the skin (i.e, wrinkles and fine lines). Results from a 2014 study published in Photomedicine and Laser Surgery demonstrated both efficacy and safety for red light therapy in promoting anti-aging skin rejuvenation and intradermal collagen increase when compared against controls.  Researchers concluded that red infrared therapy “provides a safe, non-ablative, non-thermal, atraumatic photobiomodulation treatment of skin tissue with high patient satisfaction rates.”

Subjects treated with red light therapy experienced significantly improved skin complexion, improved skin tone, improved texture/feeling, reduced skin roughness, reduced signs of wrinkles and fine lines, and increased collagen density as measured through ultrasonographic tests. Patients with rosacea and redness have also found relief using red light, even those who are unable to tolerate higher-heat laser therapies.

Repair Of Muscle Tissue and Skin Rejuvenation​

 

Red Light has been found to be useful for promoting wound healing, tissue repair and skin rejuvenation, although it does this through a different mechanism of action compared to many other laser resurfacing treatments.  Red light therapy directly stimulates regenerative processes in the skin through increased cellular proliferation, migration and adhesion. Red light therapy has been shown to positively affect skin cells through regeneration of fibroblasts, keratinocytes and modulation of immune cells (including mast cells, neutrophils and macrophages) all found within skin tissue.

Immunity and Reduced Side Effects of Cancer Treatments

Research done by NASA in conjunction with the University of Alabama at Birmingham Hospital has shown that red light technology can successfully reduce symptoms experienced by cancer patients, including painful side effects caused from radiation or chemotherapy. Using far red/near-infrared light-emitting diode devices has been shown to release long wavelength energy in the form of photons that stimulate cells to aid in healing.

NASA tested whether red light could treat oral mucositis in cancer patients, a very common and painful side effect of chemotherapy and radiation, and concluded that 96 percent of patients experienced improvement in pain as a result of the red light treatment. Patients received the light therapy by a nurse holding the WARP 75 device, which is roughly the size of an adult human hand. The WARP device was held close to the patient’s face and neck for only 88 seconds daily for 14 days. Researchers stated, “The red light device was well tolerated with no adverse affects to bone marrow and stem cell transplant patients….The red light device can provide a cost-effective therapy since the device itself is less expensive than one day at the hospital.” 

Similar red light technology is also now being utilized for the treatment of pediatric brain tumors, slow-healing wounds or infections, diabetic skin ulcers, and serious burns.

Reduced Depression and Fatigue​​

 

Another way to explain the benefits of red light is through the lens of Eastern medicine. Light therapy helps improve health, immunity and recovery, and can be compared  to acupuncture’s mechanism of action:

  • Light is a form of energy, and our bodies are just big energy systems. Light has the power to stimulate specific meridian points and chakra zones in the human body.

  • Red is said to stimulate the first chakra because it correlates most strongly with our survival instinct (hence why it gives us energy and makes us act quickly, in order to motivate us to pursue things like money, food, sex, power, etc.).

  • While acupuncture uses tiny needles to achieve bodily harmony by stimulating certain points in the body’s energy system, light therapy uses focused, visible, red wavelengths in much the same way.

Red light has been shown to be naturally energizing and correlated with improved moods by increasing self-confidence, positivity, joyfulness, laughter, mindfulness, awareness, and sensory stimulation. While results vary from patient to patient, there’s a reason to believe that red light has mental and emotional perks in addition to physical benefits.

Additional Medical Studies                     



Dr. Robert Calderhead, DrMedSci, FRSM, medical advisor to Photo therapeutics states “When effective wavelengths are aimed at the photobiomodulation zone, skin cells remain alive and unharmed, but they receive an energy boost from the direct, a thermal exchange of energy between photons and cell components. This can help repair damaged cells. The 640nm is the most commonly used wavelength for skin rejuvenation.”
 

Dr. Mary Dyson at Guy's Hospital in London, England showed that “red light collagen lamps at 633nm increased the synthesis of fibroblast growth factor from macrophage cells.”
 

Mount Sinai School of Medicine in New York City combined blue and red light therapy with collagen lamps with Microdermabrasion on 22 subjects with mild to severe facial acne vulgaris. Subjects were given eight (8) twenty (20) minute sessions, twice a week, alternating between blue and red light with collagen lamps, subjects were also given microdermabrasion before each session. The lesion count was reduced by 46% at four (4) weeks, and by 81% at twelve (12) weeks.
 

Dr. Mitchell Chasin, Medical Director of Reflections Center for Skin and Body in Livingston, New Jersey states “with LED you will see a decrease in postoperative redness.”
 

Dr. Mitchell Goldman, clinical professor of dermatology at the University of California San Diego and medical director at La Jolla Spa MD, La Jolla, CA states “LED treatments work well after any procedure that causes erythema (redness) and irritation, including chemical peels, lasers and IPL.
 

Dr. Tina Alster of the Washington Institute of Dermatologic Laser Surgery, Washington DC, states “ LED treatments used with Fraxel laser, show a reduction in healing time of as much as 50%.” Thirteen (13) subjects with fine lines, wrinkles and photodamage, received nine (9) 20 minute treatments over a five (5) week period. Sun damage at six (6) weeks the majority displayed a 25-50% improvement at twelve (12) weeks: 91% reported enhanced smoothness. Photobiology, April 2007
Seventy-six (76) subjects were divided into four (4) groups. Treatments were given twice a week for four (4) weeks. Researchers measured the skin for elasticity and melanin during the treatment period and for three (3) months following the treatments. Results showed a significant reduction of wrinkles (maximum 36%) and an increase of skin elasticity (maximum 19%). There was a marked increase in the amount of collagen and elastin fibers with highly activated fibroblast cells.
 

Dr. Harry T. Whelan, Professor of Neurology, Pediatrics and Hyperbaric Medicine at the Medical College of Wisconsin, found that diabetic skin ulcers and other wounds healed much faster when exposed to LEDs. Lab research has shown that the LEDs also grow human muscle and skin cells up to five (5) times faster than normal. The study, funded by NASA will examine the effects on diabetic skin ulcers, serious burns and flesh wounds caused by radiation and chemotherapy treatments. Dr. Whelan also states “The near-infrared light emitted by these LEDs seems to be perfect for increasing energy inside cells. LEDs boost energy to the cells and accelerate healing.

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