Can light help wounds heal faster? Relieve the pain? Does it rejuvenate and heal the skin?
For decades, research has shown it can, with findings supported by extensive NASA-funded studies. However, despite the growing evidence, its revolutionary potential red and near-infrared light therapy; has not always received the recognition it deserves.
One reason may be that the science behind it is not widely understood. In 1903, a Danish doctor received the Nobel Prize for discovering that concentrated red light accelerated wound healing. However, without a clear understanding of why it worked, he hesitated to fully embrace the practice.
Another challenge to its acceptance was the utter incredulity of the claims. In a 1989 paper on the health benefits of low-power laser light, biophysicist Tiina Karu noted that the treatment seemed “extremely incredible and even mysterious.” Moreover, its effectiveness in a wide range of ailments further fueled skepticism, making it seem like a snake oil cure.
Karu suggested that red light therapy could improve overall cellular function by stimulating mitochondria, which are the powerhouses of animal cells. This stimulation could boost cell production, reduce oxidative stress—a major contributor to inflammation, aging, diabetes, cancer, neurodegenerative diseases, and other diseases—and promote healing.
Today, it is understood that red and infrared wavelengths are absorbed by cytochrome C oxidase, a key enzyme in cellular metabolism, and possibly other light-sensitive chemicals, triggering a cascade of beneficial effects within cells.
NASA’s Accidental Discovery: From Space Plants to Healing Light
The breakthrough in understanding the potential of light therapy came through a NASA-funded project in the late 1980s. Engineer Ron Ignatius, in collaboration with the Wisconsin Center for Space Automation and Robotics (WCSAR), collaborated on the use of diodes light emitting diode (LED) for growing plants in space. LED technology, which uses mainly red and blue light to drive photosynthesis, was instrumental in growing potatoes on the space shuttle in 1995.
During this research, NASA scientists noticed something interesting: the abrasions on their hands seemed to heal faster when exposed to these LED lights. This serendipitous discovery led NASA to explore the medical potential of red and near-infrared light, particularly in addressing the challenges of muscle and bone atrophy and slow wound healing in the weightless environment of space.
Excited by the medical possibilities, Ignatius connected with neurologist Harry Whelan at the Medical College of Wisconsin to explore further. Between 1995 and 2003, a series of experiments funded by NASA demonstrated that high-intensity red and near-infrared LEDs could significantly accelerate the healing of oxygen-deprived wounds in rats and enhance the growth and proliferation of skin cells , bones and muscles.
Red and near infrared light in aesthetic and Med Spa applications
Today, the benefits of red and near-infrared light therapy extend far beyond wound healing and pain relief, finding prominence in the fields of aesthetics and medical spas. These wavelengths are now being harnessed to rejuvenate and heal the skin, offering a non-invasive method to combat the signs of aging and promote overall skin health.
In aesthetic treatments, red light therapy is praised for its ability to stimulate collagen production, which is essential for maintaining skin elasticity and reducing wrinkles. The treatment also improves blood circulation and cellular energy production, leading to a more radiant and youthful appearance. This makes it a popular choice for those looking to reduce the appearance of fine lines, wrinkles and age spots and improve skin tone and texture.
In addition, near-infrared light therapy is gaining recognition for its deeper penetration into the skin, making it effective in treating inflammation, reducing pain, and speeding up the healing process after treatment. This has made it a valuable tool in spas to enhance the results of other cosmetic procedures and promote faster recovery.
Devices such as Quantum Devices’ WARP 10 and WARP 75, originally developed for military and medical use, are now being adapted for aesthetic applications. Approved by the US Food and Drug Administration (FDA) for the temporary relief of mild muscle and joint pain, arthritis and muscle spasms, these devices are increasingly being used in spas to deliver targeted phototherapy treatments that rejuvenate and heal the skin. .
The future of light therapy in skin care
As understanding of red and near-infrared light therapy increases, its applications in aesthetics and spas are likely to expand. With its proven ability to enhance cellular function, stimulate collagen production and promote healing, this technology offers a powerful tool for skin rejuvenation and overall well-being. Whether to reduce wrinkles, improve skin tone, or speed post-treatment recovery, light therapy is set to become an integral part of the beauty and wellness landscape.
The future of skincare may indeed be brighter, thanks to the healing power of light.
