
Mighty-K9 is a bacon-flavored olive oil supplement for dogs, marketed to support joint comfort and mobility. Its key ingredient, ESS60, is C60 (a fullerene) dissolved in olive oil. It is interesting in lab-animal research, but we found no joint trials in dogs.*
Mighty-K9 is a bacon-flavored olive oil with ESS60 (C60), sold for dogs and marketed to support joint comfort and mobility. It is not a medicine and does not treat arthritis or any condition.
Joint pain in dogs needs a vet’s diagnosis first. We found no published joint trials of ESS60 in dogs, and no long-term safety data. See the ingredients page and talk to your vet.

Printed on the bottle label.

Olive oil and ESS60. The seller’s page also contradicts this once.

The brand’s own site says 30 days. Confirm at checkout.

The bottle is amber glass with a dropper and a cream label showing a dog’s face, the name “Mighty-K9 Canine Supplements” and the text “Organic Extra Virgin Olive Oil, Contains 100% ESS60, Bacon Flavor, Net Wt. 2 fl oz (60 mL).”
The seller says it helps with lubrication and “cellular protection.” We could not verify those claims for this product, so we describe it as marketed to support joint comfort. Read What Is Mighty-K9.
Never give human pain relievers such as ibuprofen, naproxen or acetaminophen to a dog unless a vet tells you to. They can be dangerous.
A routine to discuss with your vet, not a promise of a result.
Rule out injury and get a diagnosis before you add a supplement. Ask about weight, exercise and proven pain relief.
The seller says to mix the serving into a meal using the included dropper. The amount depends on your dog’s weight, so follow the label and the seller’s serving chart.
Keep the bottle in its dark glass away from light. Watch for loose stools, vomiting or less appetite, and stop and call your vet if you see them.
Note walking, stairs and playtime for a few weeks. Review with your vet, and use the guarantee window if you see no difference.
Tap an item to see what it is, what research exists, and what we could not confirm.
ESS60 is a trade name used by several brands for C60, a ball-shaped carbon molecule (fullerene) dissolved in olive oil. Rodent studies exist, with mixed findings. One reported a lifespan benefit in rats, and a later study reported light-dependent toxicity and no lifespan benefit in mice. A short regulatory-style study in rats found no adverse effects at the doses tested. We found no published joint-health trials in dogs, and no long-term safety data in dogs or people.
Amount per serving: not published in the materials we reviewed.
The oil that carries the ESS60. Olive oil is a source of fat and calories. For most dogs a small amount is fine, but extra fat can cause loose stools, and it may be a problem for dogs prone to pancreatitis or weight gain. The seller’s claim that it “soothes joint inflammation” is not something we could verify.
Amount per serving: depends on the dog’s weight and the label’s directions.
The bottle label reads “Bacon Flavor.” The seller’s page does not describe what this flavoring is. Ask what it contains if your dog has food allergies, a sensitive stomach or a salt-restricted diet.
Amount and source: not published.
The seller says the product has “two ingredients,” but one passage credits “a blend of Glucosamine, Chondroitin, and MSM” for cartilage support. Both cannot be right. We cannot confirm these are in the bottle, so we do not count them.
Presence and amount: unconfirmed.
See the full ingredients page and our guide C60 in olive oil: the facts.
We do not publish testimonials or star ratings, because we could not verify any for this product.
We found no independent reviews of this exact product to quote.
The seller says most owners notice results then. We could not verify it, and dogs’ joint comfort changes for many reasons.
A vet can tell you what is behind the stiffness and what has proven benefit.
Three pack sizes. Each bottle is 2 fl oz (60 mL).






We do not print prices because listings can differ. The brand’s own website listed $64.99 for one bottle (regular $89.99) when we checked, which may not match the checkout reached through our link. How long a bottle lasts depends on your dog’s weight and the serving chart. Confirm price, serving, shipping and auto-renewal before you pay.
The offer is shown with a 60-day money-back guarantee badge. The brand’s own website describes a 30-day “empty bottle” guarantee that needs a return authorization by email and does not include return shipping. Read the terms at checkout and keep your order confirmation. Our refund page has a checklist.
Check Terms And Price 🛒Marketed to support walking, stairs and play. Individual results vary.*
Marketed to support joint comfort. We found no dog joint trials.*
The label says bacon flavor, which may help picky eaters.
A dropper mixed into food avoids pilling.
A lean body weight is one of the best things for a dog’s joints.
We say what is confirmed and what is not.
Get a diagnosis for stiffness or limping, and ask what is right for your dog.
Extra weight loads the joints. Count the calories in oils and treats.
Short, regular, low-impact walks beat occasional long ones.
Non-slip floors, ramps and a supportive bed help stiff joints.

Illustrative photo, not a customer.
See our guides on signs of joint pain and when to see a vet for limping.
Mighty-K9 is a 2 fl oz (60 mL) dropper bottle of bacon-flavored organic extra virgin olive oil that contains ESS60. It is sold for dogs and marketed to support joint comfort and mobility. The label reads “Mighty-K9 Canine Supplements.” It is a supplement, not a medicine.
ESS60 is a trade name for C60 (a fullerene) dissolved in olive oil. The seller calls it a “Nobel Prize winning discovery.” The discovery of fullerenes did win the 1996 Nobel Prize in Chemistry, but that does not mean this product was tested or endorsed by anyone.
No. It is a supplement and is not intended to diagnose, treat, cure or prevent any condition. Joint problems in dogs need a veterinary diagnosis, and vets have proven options such as weight management, exercise plans and prescription pain relief.
We found no published trials of C60 or ESS60 for joint health in dogs. Studies in rats and mice exist, with mixed results. The seller’s claim that it is “172× more powerful than Vitamin C” is not something we could verify for this product.
The seller says once daily mixed into food with the included dropper, with the serving based on your dog’s weight using the seller’s serving calculator. We do not print doses. Follow the directions that come with your bottle and ask your vet.
A short regulatory-style rat study found no adverse effects at the doses tested, but long-term safety in dogs has not been established, and one study reported that C60 in oil can become toxic when exposed to light. Keep the bottle in its dark container away from light, and talk to your vet before starting.
Ask your vet first if your dog has pancreatitis, obesity, liver or kidney disease, food allergies, or takes anti-inflammatories, steroids or blood thinners, and if your dog is a puppy (the seller says under six months), pregnant or nursing.
The seller says so, but one passage on its page also credits a Glucosamine, Chondroitin and MSM blend. Both statements cannot be right, so we treat the ingredient list as unconfirmed. Check the bottle.
We do not print a price, because the checkout reached through our link may differ from other listings. For reference, the brand’s own website listed $64.99 for one 60 mL bottle (regular $89.99) when we checked. Confirm the price, shipping and any auto-renewal at checkout.
The offer is shown with a 60-day money-back guarantee badge. The brand’s own website describes a 30-day guarantee that requires a return authorization and shipping the bottle back, even if empty, with return shipping not included. Confirm which terms apply at checkout.
The seller says it is certified organic, made in the USA in FDA-registered, GMP-certified facilities and third-party tested. We could not verify these statements. Ask for certificates, and check the bottle for the manufacturer.
Orders are completed on the official checkout page. Review the final price, serving directions, shipping, auto-renewal and refund terms there before you pay.
