Infrared Light Therapy Benefits: What the Science Actually Shows
Infrared light therapy has become one of the most discussed topics in both clinical and consumer wellness spaces. Once confined to research labs and specialist clinics, it is now available in an increasingly accessible range of at-home devices. But what are the actual infrared light therapy benefits, and how strong is the evidence behind them?
What Is Infrared Light Therapy?
Infrared light therapy, also called near-infrared light therapy or photobiomodulation (PBM) when used in the therapeutic context, involves exposing the body to specific wavelengths of light in the red and near-infrared spectrum, typically from around 630 nm to 1100 nm.
These wavelengths are non-ionizing, meaning they do not alter DNA or cause the kind of cellular damage associated with UV light. Instead, they are absorbed by chromophores within cells, triggering a series of biological responses.
The primary target of near-infrared and red light in photobiomodulation is cytochrome c oxidase, the fourth enzyme in the mitochondrial electron transport chain.
When this enzyme absorbs red or near-infrared photons, it dissociates from nitric oxide that has been inhibiting its function, allowing increased electron transport and ATP production. This elevation in cellular energy production drives many of the downstream benefits researchers have identified.
Infrared Light Benefits for Skin
One of the most documented areas of infrared light therapy is skin rejuvenation. Multiple controlled trials have found that light in the red and near-infrared range stimulates collagen and elastin production by fibroblasts, the cells that build the dermal scaffold responsible for skin firmness and elasticity.
A controlled trial examining 136 volunteers using red and near-infrared light over 30 sessions found significant improvements in collagen density, skin roughness, and overall skin complexion compared to untreated controls. Both the red and NIR wavelengths produced measurable clinical changes, confirming their value for photorejuvenation.
Infrared light benefits for skin extend beyond collagen. Near-infrared wavelengths reduce inflammatory cytokine activity and support the regulation of macrophage behavior in the dermis. For skin conditions involving chronic inflammation, this anti-inflammatory action has meaningful implications.
A comprehensive review by Hamblin published in PMC examined the anti-inflammatory effects of photobiomodulation and identified reductions in prostaglandins, reactive nitrogen species, and inflammatory signalling across multiple models.
Wound Healing and Tissue Repair
A substantial body of research examines near-infrared light therapy for wound healing. A 2026 systematic review and meta-analysis published in the International Wound Journal, which synthesized data from 56 randomized trials and nearly 5,000 participants, found that near-infrared therapy significantly improved postoperative wound healing and reduced pain.
Optimal results were associated with wavelengths in the 700-850 nm range across 4-10 sessions. Near-infrared light stimulates fibroblast proliferation, collagen synthesis, and angiogenesis (the formation of new blood vessels), all of which are essential stages of tissue repair.
At the cellular level, infrared light therapy promotes faster cell renewal and reduces the time tissues spend in the inflammatory phase of healing, which is the stage that, when prolonged, leads to scarring and chronic wound conditions.
Pain and Inflammation Reduction
The anti-inflammatory properties of near-infrared light therapy have been documented across multiple tissue types. Hamblin's 2017 review identified animal models and human clinical applications including arthritis, musculoskeletal injury, and spinal cord inflammation where photobiomodulation consistently reduced inflammatory markers and pain signals.
The mechanism involves the upregulation of antioxidant defenses, reduction in reactive oxygen species in already-stressed tissues, and modulation of NF-kB, a key transcription factor that governs inflammation. When photobiomodulation reduces NF-kB activity in activated inflammatory cells, it dampens the inflammatory cascade downstream.
This is relevant to everyday aches, post-exercise recovery, and joint discomfort, areas where infrared light therapy devices are increasingly used outside clinical settings.
Cellular Energy and Mitochondrial Function
The core benefit that underlies many others is improved mitochondrial function. By enabling cytochrome c oxidase to work more efficiently, infrared light therapy drives increased ATP production in treated cells. ATP is the universal fuel for virtually all cellular processes including protein synthesis, membrane transport, DNA repair, and cell division.
When cells have adequate ATP, they can perform their specialized functions more effectively. This has downstream effects across virtually every tissue type where infrared light penetrates: skin cells repair and regenerate faster, muscle cells recover more efficiently, and immune cells can function with greater precision.
Pulsed Delivery: Amplifying Infrared Light Benefits
It is worth noting that how infrared light is delivered significantly affects the benefits it produces. Research by Hashmi et al. published in Lasers in Surgery and Medicine found that pulsed delivery consistently outperforms continuous wave for promoting cell proliferation, reducing inflammation, and increasing ATP output.
Pulsed light allows higher peak power during each burst without raising the total energy dose, improving tissue penetration while avoiding the cellular overstimulation that extended continuous exposure can cause.
This is the principle behind Maysama's pulsed LED therapy approach. Their devices deliver infrared and red light in precise pulses rather than continuous beams, maintaining treatments in what they call the Goldilocks zone of cellular stimulation. The result is more effective biostimulation within the same session time.
What Infrared Light Therapy Does Not Do
It is important to be clear about the boundaries of current evidence. While the research on infrared light benefits is substantial, most available studies have used professional or research-grade devices with specific parameters. Translating these findings to consumer devices requires attention to wavelength, irradiance, and delivery method.
Infrared light therapy is not a treatment for any medical condition. It supports skin optimization, wound recovery, and general cellular health, but it should not replace medical treatment for conditions requiring professional care. For people with chronic conditions, inflammatory diseases, or photosensitivity, consulting a healthcare professional before using any light therapy device is essential.
Maysama includes a clear disclaimer on their site noting that their LED devices are developed for skin optimization and are not classified as medical devices. Individual results will vary.
Conclusion
The body of evidence supporting infrared light therapy benefits is among the most robust in consumer wellness technology. From collagen stimulation and anti-inflammatory effects to wound healing support and mitochondrial activation, near-infrared and red light therapy has a scientifically grounded mechanism of action and clinical trial data to support its use.
When delivered through well-designed pulsed LED devices at validated wavelengths, these benefits are accessible for at-home use. Explore Maysama's full range of LED devices to find a device suited to your skin goals.
