NIR Laser Light Therapy for Wound Healing in Equines

NIR Laser Light Therapy - It is not an uncommon occurrence for any horse to sustain an open wound injury. Lacerations, abrasions, and deep wounds in general can often be in areas that are difficult to treat or may require complicated surgery. Accidents can happen at any given moment. In the pasture, trailer, under saddle, or even their stall. However, there are new and novel ways of accelerating healing time using NIR lasers that don’t require a prescription from your vet or invasive techniques.


The process of utilizing non-ionizing photonic energy to trigger photochemical changes using low energy lasers in the near-infrared range (approximately 630 – 1000nm) or light-emitting diode (LED) arrays is known as photobiomodulation (PBM Therapy). This process helps to accelerate wound healing as well as provide therapeutic benefits. Light in the near-infrared range has shown clear evidence of modulating various biological processes in cell cultures, helping to heal wounds faster in subjects. This has been found in both human and animal tissues. Low-energy stimulation via NIR Laser Light Therapy shows increased cellular activity in wounds during the healing process in a promising way that is non-invasive.

An important aspect of laser therapy is deciding which wavelength will work best to achieve the best results in the fastest time possible. With equine, it is important to take into consideration the color of the skin, as well as the possibility of needing to clip the fur to allow more light penetration. The greatest energy penetration for light skin is in the 800nm range, whereas medium and dark-colored skin is approximately 970nm. The wavelength defines which bio-molecular path will trigger a biological response. Power, on the other hand, is kept within a safe range so as to not damage tissue.  Tissue repair, inflammation, and pain can be treated with class 3B lasers (under 500mW power). When horses experience dermal trauma in the form of lacerations or deep abrasions, the goal is always to maximize healing while minimizing scarring and proud flesh. The dermal can be particularly slow to heal if the injury is located where there is movement, like the hock or knee.

Let’s break down the wound healing process into three phases. 




A substrate is laid down.

Cells grow and divide in a process known as proliferation to cultivate new tissue.

The tissue is remodeled.

Laser biostimulation with light in the near-infrared range is especially helpful in the second stage, when the body is creating new cells. This is the stage when cells continually grow and divide, increasing exponentially. The mitochondria of the cells are receptive to monochromatic NIR light and have been shown to increase respiratory metabolism of certain cells. When exposed to this light, mitochondrial respiratory chain components activate, which results in a cascade of trigger events that promote the rapid proliferation of cells. Collagen production increases and new blood vessels develop at an accelerated rate. Using laser light has also been found to reduce the formation of proud flesh and minimize scarring.

Laser therapy is ushering in a new era of treatment that is time-efficient, non-invasive, nonpharmacologic, and effective for our equine friends.

Looking to bring your NIR laser light therapy device to market? Sheaumann is a manufacturer of class 3B and class 4 single-mode and broadband laser diodes in the 780-1710nm range, including the most common wavelengths for NIR laser light therapy: 808, 852, 915, 940, 980, and 1064nm. Our quality management system has achieved ISO 9001:2015 certification, and our products comply with RoHS 3 and REACH requirements.

Our High Quality Laser Diodes