SCIENCE BEHIND RED LIGHT THERAPY

Red light therapy (RLT) is a growing wellness trend backed by promising science. At its core, RLT works by exposing the skin to low levels of red and near-infrared light, typically between 630 to 700 nanometers in wavelength. These wavelengths penetrate the skin a few millimeters without generating heat, stimulating the mitochondria—the cell's energy producers—to create more adenosine triphosphate (ATP), the molecule that fuels cellular functions.
This increase in cellular energy boosts the cells' ability to repair and rejuvenate themselves. It also promotes increased blood flow, reduces inflammation, and stimulates collagen production, which can improve skin texture and reduce wrinkles.
Scientific studies over the past two decades suggest RLT may support various health benefits including:
- Accelerating wound healing and tissue repair
- Reducing inflammation and pain with conditions like arthritis and tendonitis
- Enhancing skin complexion and reducing signs of aging
- Encouraging hair regrowth in cases of androgenic alopecia
- Improving cognitive function and neural health in dementia and Alzheimer's models
- Offering relief from neuropathic and chronic pain
Though many benefits are still under research, the therapy shows minimal side effects and is gaining favor as a non-invasive, painless treatment option. Some FDA-cleared devices exist for skin care and hair growth, signaling growing acceptance in clinical and at-home settings.
RLT's underlying mechanism revolves around "photobiomodulation," where red light triggers biological processes within cells that enhance their health and performance. This promising technology continues to evolve, making it an intriguing option for wellness and therapeutic care.