Laser-focused longevity

Low-level laser therapy has emerged as a modality for patient-centered, regenerative outcomes that promote longevity, healthspan and vitality.

Longevity is the incisive conversion of 2025. Consumers and practitioners alike are searching for ways to maintain and prolong a healthy, vital life. The search raises two overarching questions: What device can help achieve longevity goals? Which type of practitioner can use that device to contribute to the longevity of their patients?

I believe DCs are the best suited of all health practitioners to help our patients live long, active and healthy lives. In my view, one of the most powerful devices we can offer is non-thermal, FDA-cleared low-level laser therapy (LLLT).

The cellular basis of low-level laser therapy

LLLT utilizes FDA-cleared lasers to emit non-thermal light that penetrates the skin and underlying tissues painlessly, without generating heat. Chromophores, the light-sensitive parts of molecules within cells, absorb this light, activating signaling pathways that affect cellular processes such as proliferation, repair and inflammation.¹

The primary target of LLLT is the mitochondria, the organelles responsible for generating most of the cell’s energy. Within the inner membrane of the mitochondria, the laser stimulates the electron transport chain, a series of steps that convert glucose to adenosine triphosphate (ATP), the body’s primary fuel. Optimal mitochondrial function is essential for energy, cell repair and overall health.²

Modern lifestyle factors, such as poor diet, lack of exercise, inadequate sleep, environmental toxins and stress, can impair ATP production and cause mitochondrial dysfunction. This can lead to symptoms, such as fatigue, muscle weakness and cognitive decline. LLLT enhances the activity of key mitochondrial enzymes in the electron transport chain, increasing ATP production without generating harmful free radicals.³

LLLT also helps repair mitochondria damaged by inflammation and free radicals. For example, it can break the bond between nitric oxide and CCO, increasing ATP production and improving mitochondrial function. The overall impact of LLLT on the mitochondria leads to enhanced cell viability, proliferation and differentiation, which are essential for tissue repair and regeneration.

Cellular impacts of low-level laser therapy

Reducing oxidative stress

LLLT plays a crucial role in lowering oxidative stress, a significant factor in aging and age-related diseases caused by harmful free radicals. Besides supporting mitochondrial function, LLLT protects cells by regulating levels of reactive oxygen species (ROS). When cells face stress from toxins or injury, ROS levels rise significantly. LLLT helps decrease these levels, safeguarding cells from damage and death caused by oxidative stress. This involves activating antioxidant defense enzymes that neutralize free radicals and repair oxidative damage. Preventing oxidative harm to DNA is vital since such damage can increase the risk of autoimmune diseases and neurodegenerative disorders. Overall, reducing oxidative damage enables cells to function properly, thus decreasing the effects of aging and disease.⁴

Reducing inflammation and chronic pain

Chronic low-grade inflammation significantly contributes to tissue aging and dysfunction. LLLT provides a complementary approach to healing by engaging multiple biological mechanisms to lower inflammation and pain. Notably, LLLT stimulates the production of the anti-inflammatory cytokine IL-10, which directly reduces inflammation and suppresses the activity of other inflammatory signaling molecules. Thus, LLLT inhibits the release of inflammatory cytokines, such as tumor necrosis factor-alpha (TNF-α), interleukins such as IL-1β and IL-6, prostaglandin E2 (PGE2) and nuclear factor kappa B (NF-κB). These actions help limit the inflammatory cascade, ultimately reducing swelling, pain and tissue damage. LLLT also promotes the clearance of inflammatory cells at injury sites, widens blood vessels and stimulates angiogenesis. Improved microcirculation delivers oxygen and nutrients to damaged tissue while removing waste products and residual inflammatory mediators. As a non-opioid pain management method, LLLT is highly effective and recommended in current US Centers for Disease Control and Prevention clinical practice guidelines.^5,6,7

Stimulating endorphin production

LLLT promotes the release of endorphins, or natural painkillers made by the body. This effect results from the therapy’s local action on immune cells, activation of hormone pathways and its ability to modulate neurotransmitter levels and other chemical mediators involved in pain signaling. These combined effects highlight the synergistic benefits of LLLT in reducing pain and enhancing well-being.^8,9

Rejuvenating stem cell function

Stem cells act as the body’s repair system, able to differentiate into many different cell types. Healthy, active stem cells are key to longevity and overall health. LLLT revitalizes stem cell function by increasing the secretion of vascular endothelial growth factor (VEGF) and transforming growth factor beta (TGF-β), both essential for angiogenesis, osteogenic differentiation and effective tissue regeneration.¹⁰

Modulating the immune system

LLLT boosts immune function by enhancing lymphocyte activity and encouraging macrophage activation. These effects help the body fight infection and regulate inflammation, supporting better tissue healing and enhanced immune surveillance.

Improving cognition and brain health. Mild cognitive impairment and the downward path toward Alzheimer’s disease can be helped with LLLT. Laser therapy can improve cerebral circulation and brain oxygenation, increase ATP production in the brain, reduce neurodegeneration and inflammation, stimulate neurogenesis and neuroplasticity and reduce levels of plaque-causing amyloid beta in the brain.

Modulating the gut-brain axis. LLLT may influence the gut-brain axis by reducing gut inflammation. Because chronic gut inflammation disrupts communication along the gut-brain axis and contributes to neurological and psychological symptoms, healing the gut helps the brain. LLLT may alter the composition of the gut microbiota by supporting beneficial bacteria and suppressing harmful ones. LLLT also improves mucosal barrier function, which reduces inflammation from leaky gut syndrome and helps prevent immune activation that can affect the brain.^11,12

The impact on longevity

The ability to continue leading an active, engaged life as your patients age is central to longevity. By alleviating inflammation and chronic pain, particularly musculoskeletal pain, LLLT can encourage greater mobility and physical activity. Enhanced mobility and reduced pain and inflammation, in turn, lead to better sleep, more social engagement, better nutrition and improved immune function; all proven longevity factors. An additional, sometimes overlooked, effect of LLLT is that improvements in all these areas can lead to reductions in the need for pharmaceuticals and the risk factors they bring.

Wavelengths matter

Within the range of low-level laser wavelengths from FDA-cleared devices, three have been clinically shown to be highly effective for supporting musculoskeletal repair, reducing pain, increasing ROM and facilitating functional recovery.¹³

Red laser: 635nm

Red laser is the foundation of most laser-based tissue repair protocols. With optimal absorption and penetration depth for superficial and moderately deep tissues, red laser at 635nm wavelength is easily absorbed by cytochrome c oxidase, which leads to increased mitochondrial activity and ATP production.¹³

Clinical applications of 635nm LLLT include:

• Tendinopathies and ligament injuries
• Myofascial pain syndromes
• Post-operative healing
• Scar tissue remodeling
• Chronic inflammation of joints and soft tissues
• Stimulating Complex IV of the electron transport chain

Red laser has consistently demonstrated improvements in pain scores, tissue flexibility, early-stage wound healing and musculoskeletal care.

Green laser: 520nm

Green laser at 520nm is less commonly used in laser therapy, but it exhibits powerful effects. It interacts with cytochrome b in Complex III of the mitochondrial chain, augmenting the flow of electrons and boosting ATP generation. Clinical significance includes:

• Stimulation of endothelial repair
• Enhanced lymphatic flow
• Improved microvascular circulation
• Support for neurovascular regeneration
• Improved immune function
• Vagus nerve stimulation/balance
• Attenuation of headaches and fibromyalgia

Green laser may also enhance outcomes in cases of neurogenic inflammation, muscle fatigue and peripheral nerve repair. Its effect on stem cell metabolism adds utility in regenerative applications.¹³

Violet laser: 405nm

Violet laser is the highest-energy visible wavelength used in a non-thermal laser. Its impact is powerful in priming the nervous system and facilitating rapid results.

Clinical applications include:

• Antimicrobial activity, particularly against drug-resistant strains
• Enhanced nitric oxide signaling and immune modulation
• Reduced oxidative stress in superficial tissues
• Synergistic potentiation of red and green wavelengths
• Vagus nerve stimulation/balance

Stimulation of Complex I and II of the electron transport chain

Violet laser is especially effective in addressing chronic pain where inflammation, microbial burden or fascial immobility may be perpetuating dysfunction. This wavelength is at the shortest end of the visible spectrum. Violet laser photons carry more energy that is more readily absorbed by chromophores in tissues, facilitating more substantial effects.¹³

Coherent light is key

Laser light is coherent, meaning its photons move in the same direction with a single wavelength. This allows for better tissue absorption and precise, targeted effects, which are ideal for musculoskeletal repair, pain reduction and other salutary effects. In contrast, non-coherent light scatters in multiple directions, limiting absorption and dramatically reducing efficiency.

Rapid functional improvement

The application of combined low-level laser wavelengths has demonstrated notable therapeutic effects. Specifically, the integration of 635nm red laser with 405nm violet or 405nm violet with 520nm green, has been associated with significant increases in cervical and shoulder range of motion after a single treatment session. In both studies, patients reported reductions in pain intensity as measured by the Visual Analog Scale (VAS). Among these combinations, the pairing of 405nm violet and 520nm green laser has yielded the most pronounced clinical outcomes. Furthermore, when all three wavelengths are applied in a “stacked” protocol, patients consistently exhibit accelerated functional recovery and symptomatic improvement.^14,15

Final thoughts

When used systematically, low-level laser therapy can address both the root cause of dysfunction and symptom expression, aligning seamlessly with a patient-first model. These protocols are more than adjunctive; they represent a paradigm shift in how we view musculoskeletal care and its impact on longevity. If you are seeking to push the boundaries of healthspan through highly effective noninvasive modalities, integrating laser therapy into your practice is the answer your patients have been looking for.

An interview with Robert G. Silverman, DC

Download interview transcript (PDF)

Robert G. Silverman, DC, DACBN, DCBCN, MS, CCN, CNS, CSCS, CIISN, CKTP, CES, HKC, FAKTR, is a doctor of chiropractic, clinical nutritionist, national/international speaker, author of Amazon’s best-sellers “Immune Reboot” and “Inside-Out Health” and founder and CEO of Westchester Integrative Health Center. He graduated magna cum laude from the University of Bridgeport College of Chiropractic and has a master’s degree in human nutrition. A thought leader and seasoned health and wellness speaker, he is a frequently published author and was the principal investigator in two Level 1 FDA laser studies. For more information, visit drrobertsilverman.com. This article was written on behalf of Erchonia.

References

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