The Efficacy and Mechanisms of Light Therapy

Efficacy and Mechanisms of Light Therapy | Deeply Vital Medical

Edited By Dr. Lauren Weber, MSCP, ABOM

Light Therapy, alternatively termed low-level light therapy, has surfaced as a groundbreaking, non-invasive, pain and drug-free therapeutic intervention. Using light-emitting diodes (LEDs), Red Light Therapy (RLT) safely delivers Red and Near-Infrared Light optimized wavelengths to the skin, kickstarting a range of therapeutic effects, utilizing a process called photobiomodulation (PBM). While the core mechanisms driving Light Therapy are subjects of active research, this treatment’s tangible benefits and safety profile are steadily being validated within the medical community.

The Underpinnings of Light Therapy

Cellular Interaction and Energy Production

A pivotal proposition regarding Light Therapy is its intimate interaction with cellular structures. From what we know, once the cell’s photon receptors (cytochrome c oxidase) absorb the Red and Near-Infrared Light, they initiate several biological processes vital for cellular repair and regeneration. One crucial outcome of this interaction is the enhanced production of ATP (adenosine triphosphate) in the mitochondria. As the principal energy currency, ATP is imperative for powering all cellular activities. Mitochondria play an important role in metabolism and energy generation. Sequentially, it triggers cell proliferation and sets off a cascade of signals, ultimately reducing oxidative stress and beneficial cascades within the cell. This, in turn, paves the way for the healing process. A byproduct of one of the cascades, Nitric oxide (NO), after exposure to Light, releases NO from cytochrome c oxidase, allowing cellular respiration and production of ATP. NO is placed into the bloodstream, where it can exert its vasodilation effects. 

RLT has shown its capability to support stem cell production, enabling cells to perform their intended functions with increased energy. Through the precisely optimized wavelengths of Light, osteoblasts are stimulated for bone development and fibroblasts for collagen synthesis.

Collagen and Elastin Production  

The rejuvenating effects of Light Therapy on the skin can be attributed to its role in bolstering circulation and the production of collagen and elastin. These proteins play a seminal role in preserving skin elasticity and robustness, leading to diminished fine lines and wrinkles and a general amelioration of skin texture. 

Therapeutic Applications

The therapeutic potential of Red Light Therapy (RLT) encompasses a wide range of conditions and concerns. It extends its benefits from addressing common skin issues such as acne and eczema to relieving pain associated with conditions like arthritis and fibromyalgia. Additionally, RLT has shown promise in alleviating discomfort from menstrual cramps and muscle spasms, as well as promoting hair growth and expediting wound healing.

Furthermore, RLT is not limited to these applications alone. It has been found to have a positive impact on sexual function, aiding in the management of COVID AND Long COVID symptoms, and bolstering immunity. Additionally, RLT may help mitigate certain side effects induced by chemotherapy and radiation. 

One of the remarkable effects of RLT is its ability to increase the production of nitric oxide (NO), which in turn leads to vasodilation—the widening of blood vessels. This vasodilation has profound implications for various aspects of health, including cardiovascular well-being, sexual health, pulmonary function, the healing process, and detoxification.

Expanding on the therapeutic applications of RLT, it has also shown promise in the following areas:

The versatile and multi-faceted benefits of RLT make it a promising option for individuals seeking natural and non-invasive solutions to a wide range of health and wellness concerns. Remember, you do not need to have an issue for Light Therapy to improve your health. 

Safety, Efficacy, and Contraindications

Continued emerging research underscores the safety and effectiveness of Red Light Therapy. To date, all studies conducted on Photobiomodulation (PBM) consistently demonstrate its safety, especially when employing LED technology instead of lasers. While side effects are minimal, some individuals might experience transient redness, which recedes rapidly. It’s paramount, however, to consider Light Therapy as a complementary approach, not a stand-alone replacement for conventional medical treatments or a healthy lifestyle and diet. 

Particular caution is advocated for specific groups. Those with active malignancies should secure oncological clearance before opting for Light Therapy. Additionally, pregnant women should discuss this with their OBGYN. Turning the Near-Infrared Light off to prevent warming and still receive the Red Light benefits is also possible, and I suspect helpful as it helps with circulation. The dynamics between Light Therapy and cancer cells necessitate further in-depth exploration for conclusive safety assessments.

Deeply Vital Medical and Whole-Body Light Therapy

Charting new territories in Light Therapy is Deeply Vital Medical. Under the aegis of Dr. Lauren Weber, an illustrious alumnus of the Cleveland Clinic. At the heart of our practice lies whole-body Light Therapy, reflecting a holistic wellness perspective ensuring an all-encompassing treatment trajectory. Our unwavering allegiance to evidence-backed medicine and pioneering technology promises unparalleled therapeutic experiences for our clientele.


With its multifaceted applications, Light Therapy is on the cusp of redefining non-invasive therapeutic modalities. While more double-blind placebo-controlled trials would solidify its acknowledged efficacy, the prevailing evidence is robust. Patients and clinicians must enter informed discourse to gauge the suitability of Light Therapy on a case-by-case basis. The horizons seem resplendent as we plunge deeper into harnessing Light’s therapeutic nuances.

Call Now Button