How Photobiomodulation Works

Photobiomodulation (PBM) is the use of specific wavelengths of red and near-infrared light to support normal cellular and tissue processes. In equine applications, PBM is commonly used as a non-invasive, supportive therapy to help manage recovery, circulation, and comfort as part of broader care and conditioning programs.

​

Red and near-infrared light therapy is studied in both human and veterinary contexts and is often discussed in relation to musculoskeletal recovery, soft-tissue support, and long-term maintenance. Importantly, PBM is not a medical treatment or cure, and outcomes depend on appropriate use, consistency, and individual response.​

​

​

What Happens at the Cellular Level

​

PBM is commonly described in research as the interaction of light with cellular photoacceptors. When red or near-infrared wavelengths are absorbed by tissue, they are discussed in relation to several biological mechanisms, including:

• Interaction with mitochondrial pathways involved in cellular energy production

• Modulation of cellular signaling processes related to tissue response and repair

• Influence on nitric oxide–related signaling, which plays a role in local circulation

• Effects on oxidative stress and inflammatory signaling, depending on dose and context

These processes are dose-dependent, meaning that wavelength, intensity, treatment duration, frequency, tissue depth, and individual factors all influence how PBM is experienced.

​

PBM is therefore best understood as a supportive tool, not a standalone solution and not a replacement for veterinary diagnosis or treatment.

​​

​

Why Red and Near-Infrared Light Are Used

​

Photobiomodulation devices are designed to use wavelengths that are commonly discussed in research for their ability to interact with tissue.

​

In equine therapy, red and near-infrared wavelengths are typically selected because they are associated with different tissue depths and applications:

• Red light (around 660nm) is commonly associated with more superficial tissue interaction and cellular signaling

• Near-infrared light (around 850nm and above) is widely used in PBM literature for deeper soft-tissue contexts

Some systems include multiple wavelengths to support a broader range of tissue depths rather than relying on a single wavelength for all applications.

​

​

PBM in Equine Recovery and Maintenance

In equine settings, photobiomodulation is commonly incorporated into broader care programs to support:

• Recovery following training, competition, or physical exertion

• Ongoing joint and soft-tissue maintenance

• Circulation support in areas with limited blood supply

• Comfort and mobility as part of long-term management strategies

PBM is often used alongside proper conditioning, veterinary oversight, farrier care, and rehabilitation protocols when appropriate. Individual response varies based on the horse, the condition being addressed, and how the therapy is applied.

​

A Supportive, Evidence-Based Approach

ReGen Equine devices are designed around evidence-based photobiomodulation principles, with a focus on clinically relevant wavelengths, appropriate output levels, and equine-specific application.

By prioritizing transparency, realistic expectations, and proper use, photobiomodulation can be a valuable supportive tool within a comprehensive equine care program — without exaggerated claims or unnecessary add-ons.

​