There’s No Such Thing as “FDA-Approved” Red Light Therapy for Pets

No red light therapy device for pets is “FDA-approved” because the FDA does not have an approval process for veterinary devices. If a product claims this, it is either a mistake or misleading.

Red light therapy, also known as photobiomodulation or low-level laser therapy, is now popular for dogs, cats, and horses. As more products appear, so do marketing claims, and “FDA approved” is a phrase sellers often use. This article explains what the FDA actually regulates in this area, what common terms mean, and what to ask when a company cites the FDA.

In one example we found, a device advertised as “FDA approved for pets” actually referred to an FDA listing for a human heating pad. The listing was real, but it had nothing to do with the product being sold or with animals.

How the FDA actually regulates animal devices

The FDA does have rules for animal devices, but it does not review them before they are sold. Its own guidance, How FDA Regulates Animal Devices, explains the rules:

• No premarket review. The FDA does not require a 510(k), a PMA, or any other premarket submission for devices intended for animal use.
• No registration or listing. Companies that make or distribute only animal devices do not have to register with the FDA or list their products.
• The responsibility is on the seller. The manufacturer or distributor must make sure the device is safe, effective, and properly labeled.
• The FDA can still act. It can take action against an animal device that is misbranded (falsely or misleadingly labeled) or adulterated.

The FDA clearly states on its website that it does not approve animal medical devices. This is why no red light therapy product for pets can truthfully claim to be “FDA approved.”

There is one rule that applies before sale. Devices emitting light, especially lasers, are considered radiation-emitting electronic products. Laser-based pet devices must meet FDA safety standards for laser products (21 CFR 1040). Meeting these safety standards is important, but it does not mean the device’s therapeutic claims are approved.

FDA-cleared, FDA-approved, and FDA-registered are not the same thing

For human medical devices, these three words mean very different things when it comes to FDA involvement. Most human red light therapy devices with any FDA status are “cleared,” not “approved.”

Term	What it means	Pathway	What the FDA reviewed	Typical examples
FDA approved	The FDA found the device safe and effective for its specific use	Premarket Approval (PMA)	Extensive scientific and clinical data, usually including clinical trials	Pacemakers, artificial heart valves
FDA cleared	The device is “substantially equivalent” to a device already legally on the market	510(k), or De Novo for new low-to-moderate risk types	Comparison to an existing “predicate” device, sometimes with performance data	Surgical gloves, hospital beds
FDA registered	The company told the FDA where it operates and what it makes	Establishment registration and device listing	Nothing. It is paperwork, not a review	Any registered human device maker

Here are two points that readers usually overlook:

• “Registered” is not an endorsement. FDA regulations (21 CFR 807.39) say registration does not mean the FDA approved the company or its devices. Presenting registration as if it were approval is itself considered misleading. The FDA also does not issue “registration certificates”; documents sold under that name come from private consultants.
• Drugs are a separate system. Drug approval runs through a different process. It says nothing about how devices are reviewed, so be wary of any comparison between the two.

Why FDA Clearance for Humans Doesn’t Apply to Pets

If a red light device for pets has any FDA clearance, it only covers a specific use in humans, not animals. A 510(k) clearance is for one device and one stated purpose, like temporary relief of minor muscle pain in adults. It does not mention dogs, cats, or horses.

These differences are practical as well as legal:

• lFur can block light. Devices made for humans are designed for bare skin. They usually do not part the animal’s coat or keep steady contact on a dog’s hip or a horse’s leg, so much of the light may not reach the tissue. This means that the effectiveness of therapy in pets may be reduced compared to results seen in humans. As a result, pet owners should expect that benefits could be less noticeable if the light does not penetrate as deeply due to a thick or dense coat.
• Doses do not translate directly. Human settings for energy density (J/cm²) and session length are based on human skin, tissue depth, and body size. These settings do not fit a 4 kg cat, a 40 kg dog, or a 500 kg horse. For your pet’s safety, talk to a veterinary clinician about what settings and treatment approaches are appropriate for your animal. A vet can help ensure that any therapy you use is as safe and effective as possible for your pet’s specific needs.
• Coat and skin color also matter. Dark fur and pigmented skin absorb more light, which affects how much light reaches the target and how much heat builds up on the surface.

It is honest to mention a human clearance, but it becomes misleading if it is used as proof that the product was reviewed for animals.

Questions to ask when a company claims FDA status

A company with real FDA clearance can answer these questions quickly. If they cannot, or if their answers keep changing, that is a good reason to walk away.

1. What exactly did the FDA clear or approve? Ask for the device name and the 510(k) number (it starts with “K”) or PMA number (it starts with “P”).
2. Is it this device? Confirm the number corresponds to the product you are buying, not a different model, a component, or an unrelated product from the same company.
3. What is the cleared use? Every clearance lists an “indications for use.” Check whether it includes animals. It almost certainly won’t.
4. Who is the clearance for? A human, over-the-counter clearance is different from a prescription clearance, and neither covers pets.
5. If they say “registered,” registered as what? Ask whether it refers to a company’s establishment registration for human devices. Remember that registration involves no review of the product.
6. For laser devices, what laser class is it? Ask whether it complies with FDA laser product standards, and look for the class label on the device.

Check it yourself. You don’t have to take the company’s word for it. The FDA’s public 510(k) database and PMA database let anyone search by number, company or device name. Each entry shows the device, the company and its cleared use.

What to look for instead

Because there is no FDA approval for pet devices, judge a product by how honestly it is marketed and how well it is designed for animals. Look for:

• Honest regulatory language. Phrases such as “cleared for human over-the-counter use” or “made by an FDA-registered facility” are fair, as long as they are not presented as pet approval.
• Designs made for animals. Look for features like fur-parting or contact heads, and see if they are shown being used on real pets, not just in product images.
• Pet-specific instructions. Look for guidance that considers the animal’s species, weight, coat length and color, and the area being treated.
• Veterinary involvement. Look for endorsements or advice from veterinarians or veterinary rehabilitation professionals, not just social media influencers.
• Clear safety information. The product should include guidance on eye protection, warnings about when not to use it, and advice to check with a veterinary clinician first, especially for pets with cancer, pregnancy, or skin conditions.

Safety checks for at-home devices

Safety ratings won’t tell you whether a device works, but they do tell you whether its light, heat, electronics, and battery are likely to hurt your pet or you. For a device used at home, without a vet present, these are the ones worth asking about.

Check	What to look for	Why it matters for pets
Light source rating	LED devices: “Exempt” or “Risk Group 1” under IEC 62471. Laser devices: a laser class printed on the label	Most home devices use LEDs, which have their own standard. Class 3B and 4 lasers belong in a clinic with trained operators, not at home.
Eye safety guidance	Clear instructions for keeping light away from the eyes	Near-infrared light is invisible, so pets don’t blink or look away, and they rarely tolerate goggles.
Heat control	A stated maximum surface temperature, a session timer and automatic shutoff	Pets can’t tell you a pad is too hot, and dark coats absorb more heat.
Electrical certification	A UL, ETL or CSA mark from a testing lab	These marks mean an independent lab tested for shock and fire risk. A “CE” mark alone is self-declared by the manufacturer.
Battery safety	IEC 62133 and UN 38.3 for lithium batteries	Cordless wraps sit on animals who may lie on, chew or drool on them.
Water and wear resistance	An IP rating, such as IP44 or higher	Drool, wet coats and outdoor use all expose the device to moisture.
Contraindications	A written list of when not to use it	Pets with cancer, pregnancy, open wounds or skin conditions may need a  veterinary clinician’s input first.

Two labels often cause confusion. FDA device classes (I, II, III) rank human medical devices, so a pet product claiming to be a “Class II device” is borrowing a human classification. ISO 13485 certifies the manufacturer’s quality system, which is a good sign, but it isn’t a safety rating for the product itself.

The bottom line

The FDA does not approve red light therapy devices for pets, because it does not approve any animal devices. If a company claims otherwise, ask what exactly was approved and verify yourself. A trustworthy company will be happy to answer. Before purchasing or using any red light therapy device for your pet, talk to your veterinary clinician. They can help you decide whether this therapy is appropriate, suggest the right settings, and make sure the treatment is safe and suited to your animal’s health needs.