Red Light Therapy for Dogs: Benefits, Research and How to Use It at Home

Quick answer: Red light therapy for dogs (also called photobiomodulation, or cold laser therapy when a laser is used) shines low-power red and near-infrared light on the body to support how cells make energy. Controlled trials in dogs show benefits for osteoarthritis comfort, recovery after spinal surgery and chronic wound healing, while other trials found no effect. It is generally well tolerated when the eyes, tumors, pregnancy and puppy growth plates are avoided. Talk to your veterinarian first.

Key Takeaways

• Red and near-infrared light are absorbed inside cells and can support energy production and tissue repair.
• The best dog evidence is for osteoarthritis: in two randomized trials, dogs moved better and some needed less pain medication.
• In one small, non-randomized study, dogs given light therapy after spinal disc (IVDD) surgery were able to walk again sooner (median 3.5 days versus 14).
• Results for wounds, skin and post-surgical bone healing are mixed, so set realistic expectations.
• Avoid the eyes, known tumors, a pregnant belly, the thyroid and open growth plates in puppies, and watch for warmth on dark coats.
• At home, short, regular sessions with a pad, wrap or panel are the most practical option, following your device's instructions and your vet's plan.

They're your best friend, your main confidant, and the reason your couch is covered in pet hair. Your dog is a member of your family, and as the leader of their pack, it's your responsibility to take care of them to the best of your abilities.

You want to give your dog the best opportunities to thrive. In addition to high-quality food, plenty of exercise and, of course, lots of snuggles, red light therapy at home could help support your goals of helping them live their best lives, from recovering after an injury to staying comfortable as they age.

At Mito Red Light, we're pet owners too. We'll explain what red light therapy is, how it works, what the research in dogs actually shows, and how to use it safely at home.

What Is Red Light Therapy for Dogs?

Considered a branch of photomedicine, red light therapy (RLT) and near-infrared (NIR) light therapy use specific wavelengths of light, usually around 630 to 660 nm (red) and 810 to 850 nm (near-infrared), to influence how your dog's cells work. The same science applies to people, which is why many families share one device.

Red light is part of the visible spectrum, while NIR light is invisible. NIR light penetrates deeper, reaching muscle, joints and bone. For a closer look at the difference, see our guide to red vs near-infrared light therapy.

You may also hear it called "cold laser therapy." Veterinary clinics often use Class IIIb or Class IV lasers, which deliver more power in a small spot and need a trained operator. At-home devices use LEDs, which spread lower-power light over a wider area. Both rely on the same mechanism, but the doses and the research behind them are not identical.

Understanding Cellular Health

The health of your dog begins in their cells. Cells are the building blocks of every tissue and organ in your dog's body. When their cells are healthy, our pets are healthy. When they aren't, our pets decline, especially as they age. To see the research yourself, visit our veterinary research evidence page.

Inside Cells

Inside mammalian cells, mitochondria produce adenosine triphosphate (ATP), the energy currency that powers cellular processes. As cells age, mitochondria tend to make less ATP, which leaves cells struggling to do their jobs.

The Red Light Link

Red and near-infrared light are absorbed by an enzyme in the mitochondria called cytochrome c oxidase, which plays a key role in making ATP. When the enzyme absorbs this light, cells can produce energy more efficiently, and researchers also see changes in blood flow and inflammation signals.

While red light has been studied extensively in humans, veterinary medicine has used light therapy for more than a decade (Godine, 2014). Let's look at what the research in dogs shows.

What the Research in Dogs Shows

Most dog studies are small, and they use clinic lasers rather than home LED devices, so they show what light therapy can do, not what any specific device does. Here are the key controlled studies, positive and negative.

Reviews agree the evidence is promising but uneven. A 2023 systematic review of 45 studies in dogs, cats and horses found conflicting results and studies of limited quality, largely because they used very different wavelengths, doses and schedules. A 2025 evidence summary on osteoarthritis rated the evidence as weak, since it rests mainly on the Looney trial above, and called for more studies.

6 Benefits of Red Light Therapy for Dogs

One of the hardest parts of pet ownership is watching a beloved pet decline or go through a difficult surgery. Red light therapy is one way to support their comfort and recovery alongside your vet's care.

1. Support During Post-Surgical Recovery

If your dog has had surgery, getting them back on all four feet quickly matters. In a small, non-randomized study of 36 dogs after spinal disc (IVDD) surgery, dogs given daily light therapy were able to walk again in a median of 3.5 days, compared with 14 days for dogs who had surgery alone. After knee (TPLO) surgery, one preoperative session led to more weight bearing at 8 weeks, though bone healing on X-rays was not clearly faster, and a 2025 review called that question inconclusive.

2. Rehabilitation After Injury

Rehabilitation is hard on dogs, who don't understand why they need to rest. Light therapy is a common part of veterinary rehab programs. A 2022 systematic review of rehab after cruciate ligament surgery found the strongest support for exercise and cold compression, with limited and conflicting studies on other tools, including light. Think of red light as one part of a rehab plan, not a replacement for it.

3. Wound and Soft Tissue Recovery

Dogs can be nearly impossible to keep still while an injury heals. In a randomized trial of 21 dogs, chronic wounds shrank faster with 830 nm light, and a 14-dog pilot found fewer bacteria in contaminated wounds at the lower dose tested. But a study of fresh wounds in healthy dogs found no benefit with that protocol. Any wound should be checked by your vet first.

4. Joint Comfort and Less Reliance on Pain Medication

If your dog lives with arthritis, you may want to reduce their medication over time. In a randomized, placebo-controlled trial, 9 of 11 dogs with elbow osteoarthritis needed less pain medication after 6 weeks of light therapy, compared with none of the dogs given a sham treatment. In a double-blind trial in dogs with hip osteoarthritis, light therapy improved pain and function scores compared with the anti-inflammatory meloxicam. Never change your dog's medication without your vet. For more on joints, see red light therapy for inflammation and joint pain.

5. Skin Issues

Many breeds, dachshunds among them, are prone to skin problems such as pododermatitis, an inflammation of the skin on the paws. In a five-dog pilot study, laser-treated paw lesions improved more than lesions treated with a steroid spray, and more than half of the treated lesions had not returned two months later. For acral lick dermatitis, a double-blind trial using a laser with blue and red LEDs found no difference in licking or lesion size, but 24% more hair regrowth. Vets also use a related approach, fluorescent light energy (blue light with a special gel), for hot spots and wounds, as described in a 2021 veterinary review.

6. Comfort and Mobility for Senior Dogs

Many owners ask whether red light therapy helps dogs live longer. No study has shown that it extends a dog's lifespan. What the research does support is better comfort and mobility in dogs with osteoarthritis, which is often what keeps senior dogs walking, playing and enjoying life. A few short sessions a week can fit easily into an older dog's routine, alongside weight control, exercise and regular vet checkups.

Is Red Light Therapy Safe for Dogs? Side Effects and Risks

When used correctly, side effects are rare. The AKC notes that the main risks of clinic lasers are eye injury and, rarely, burns from improper use. Veterinary guidance from VCA Animal Hospitals and the Merck Veterinary Manual says to avoid:

• The eyes. Never shine the light into your dog's eyes, and keep their face turned away from a panel.
• Known or suspected tumors and cancer, including lymphoma, and dogs on immunosuppressant medications.
• A pregnant belly.
• The thyroid, testicles and other glands.
• Open growth plates in puppies under about a year old, especially with higher-powered devices. Ask your vet about your puppy.
• Areas that are actively bleeding.

If your dog takes photosensitizing medications, ask your vet about a lower dose. Zoetis also advises watching for heat buildup on dark or heavily pigmented coats, which absorb more light. LED devices run much cooler than clinic lasers, but check your dog's skin during the first sessions, and stop if they seem uncomfortable. Our guide to red light therapy contraindications covers the same principles for people.

How to Use Red Light Therapy on Your Dog at Home

Your veterinarian may offer laser sessions in the clinic, usually as a series of visits paid per session. Many owners also use a device at home, which makes regular sessions easier. Here's how to start:

1. Check with your vet. Get a diagnosis for any limp, lump, wound or skin problem first, and ask whether light therapy fits the plan.
2. Choose a format your dog will tolerate. A pet pad lets your dog lie down comfortably. A wearable coat stays in place while they move. A panel works for calm dogs who will rest in front of it.
3. Position the light on the target area. Aim at the hips, spine, elbows or paw, keeping the light away from the eyes.
4. Start short and build up. Sessions are usually a few minutes per area, several times a week. Follow your device's instructions and your vet's plan, since the right dose depends on the device and the condition.
5. Stay in the dose range. Light therapy has a dose "sweet spot," and very high doses can be less effective. Learn more in our guide to red light therapy dosing.
6. Track changes. Note how your dog walks, climbs stairs and rests, and review progress with your vet after a few weeks. You do not need to shave your dog, but light reaches the skin more easily through short or thin fur.

What to Look for in an At-Home Device for Your Dog

• Wavelengths: red (about 630 to 660 nm) and near-infrared (about 810 to 850 nm), the ranges used in most studies.
• Format: a pad or mat for dogs who like to lie down, a wrap for dogs who move, or a panel for calm dogs.
• Published test data: independent measurements of wavelength and irradiance, not just marketing numbers.
• Electrical safety certification and a built-in timer.
• Low heat, so you can keep sessions comfortable for dark-coated dogs.

Red light therapy is also used with other animals. See our guides to red light therapy for horses and red light therapy for pets.

Power is a safety point many owners overlook: dogs chew cords. MitoPETS pads and coats run on a power bank certified by UL Solutions to UL 2056, the safety standard for power banks, so there's no wall cord for your dog to chew during a session. Charge the power bank between sessions with the included USB-C cable.

Why Mito Red Light?

You can pay for sessions for yourself at a spa and for your dog at the vet, or you can invest in a red light device that you can both use in the convenience and privacy of your own home.

Made for pets. Our MitoPETS line is designed for pets, including dogs and cats. The MitoPETS Small Pet Pad and Large Pet Pad give your dog a comfortable place to lie down during a session. The Wearable Pet Infrared Coat comes in small, medium and large sizes, so the light stays in place while your dog moves around.

Our lights. Talk with your vet before you begin. Once you have the okay, Mito Red Light's red light therapy devices include options that many owners use with their dogs. A red light therapy panel covers a large area for calm dogs, and some owners use the MitoQUAD belt around a larger dog's midsection, over the spine and hips. Follow the included instructions.

Our testing. Our panels are independently lab tested, and we publish the results so you can see the wavelengths and irradiance for yourself.

Our technology. Our MitoPRO series combines multiple red and near-infrared wavelengths in one panel, so you and your dog can share a single device. Every device comes with a 60-day trial.

Frequently Asked Questions

Does red light therapy help dogs live longer?

No study has shown that red light therapy extends a dog's lifespan. Randomized trials do show better comfort and mobility in dogs with osteoarthritis, which can help senior dogs stay active and enjoy life.

Is red light therapy safe for dogs?

Side effects are rare when it is used correctly. Avoid the eyes, known tumors, a pregnant belly, the thyroid and the growth plates of puppies, and watch for warmth on dark coats. Check with your vet before starting.

How often should I use red light therapy on my dog?

Follow your device's instructions and your vet's plan. Sessions are usually a few minutes per area, several times a week. More is not better, because light therapy has an effective dose range.

Can I use my own red light therapy panel on my dog?

Many owners share a panel with their dog. Check with your vet first, keep the light away from your dog's eyes, use the distance and session time in your device's instructions, and stop if your dog seems uncomfortable.

Why do MitoPETS devices run on a power bank?

Dogs chew cords, and a wall cord on the floor is a hazard for pets and people. MitoPETS pads and coats run on a long-lasting power bank certified by UL Solutions to UL 2056, the safety standard for power banks, so there's no wall cord during sessions.

What is the difference between laser therapy at the vet and red light therapy at home?

Clinic lasers deliver more power to a small spot and need a trained operator and eye protection. At-home LED devices spread lower-power light over a wider area. Both work through the same mechanism, but most dog studies used clinic lasers.

Can dogs see red light?

Dogs have two types of color receptors instead of three and are much less sensitive to deep red than people, so red light likely looks dim to them. Near-infrared light is invisible to both dogs and people, but it can still reach the eyes, so keep any device pointed away from your dog's face.

The Bottom Line for Dog Owners

Your dog gives you their best every day. With your vet's guidance, red light therapy is a simple, drug-free way to support their comfort and mobility at home, so you can enjoy more walks, more fetch and more time together.

References

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