Official U.S. shopFor first-time buyers
What Is Mighty K9? A First-Time Buyer's Guide Before You Order
Mighty K9 is a liquid supplement for dogs only: organic extra virgin olive oil with ESS60 (C60) and bacon flavor, in a 60 mL dropper bottle. The serving is 2 mL once a day on food, 30 servings per bottle. It is not a drug, not for people, and not FDA approved.
Written by the Mighty K9 editorial teamMedically reviewed by Dr. Aimee Duffy, MD, PhysicianReviewed · Updated · 7 min read
Key facts at a glance
- Form: liquid drops in a 60 mL (2 fl oz) amber dropper bottle, not a chew or a capsule.
- Serving: 2 mL once a day, mixed into your dog's food. One bottle holds 30 servings.
- Label: 1.6 mg of ESS60 and 16.2 kcal per serving. Three ingredients.
- Maker named on the sales page: Mighty-K9 in Houston, Texas. Made in Texas, USA, per the product page.
- This website is the Mighty K9 U.S. shop, a stocking partner. It is not the manufacturer.
- No study has tested C60 or Mighty K9 for dog joints. The product is not FDA approved.
What is Mighty K9 in plain words?
Mighty K9 is olive oil with a small amount of a carbon molecule called ESS60 mixed in, plus a bacon taste. You give it to a dog by dripping it over a meal. That is the whole product.
The bottle front reads: Organic Extra Virgin Olive Oil, Contains 100% ESS60, Bacon Flavor, Net Wt. 2 fl oz (60 mL). The label serving is 2 mL once a day. A full bottle therefore covers 30 days for one dog.
The sales page aims the product at senior dogs and active dogs. It talks about joint comfort, mobility, everyday stiffness and cell support. Those words are the brand's, not study results. This site tells you where the evidence stops, so you can decide with open eyes.
It is made for dogs. The label says for canine use only. Keep the bottle away from children and other animals.
What is inside the bottle?
Three ingredients are printed on the label: extra virgin olive oil, ESS60 and bacon flavor. Nearly all of the 2 mL is oil. The ESS60 is 1.6 mg, which is a tiny share of the liquid.
| Item | What the label says |
|---|---|
| Crude protein (min) | 0% |
| Crude fat (min) | 100% |
| Crude fiber (max) | 0% |
| Moisture (max) | Less than 0.1% |
| ESS60 | 1.6 mg (not recognized as an essential nutrient by the AAFCO Dog Food Nutrient Profiles) |
| Calories (calculated) | 8,100 kcal ME per kg, which is 16.2 kcal ME per 2 mL serving |
| Ingredients | Extra Virgin Olive Oil, ESS60 and Bacon Flavor |
ESS60 is a trademarked name for C60 fullerene, a ball of 60 carbon atoms. It does not mix with water, so it rides in the oil. The bacon flavor is listed last, and nothing says what it is made from or how much is used.
Who makes Mighty K9?
The brand's sales page names the maker as Mighty-K9, at a Houston, Texas address. Per the product page, the drops are made in Texas, USA, in a facility it calls GMP-certified.
Here is the catch. No certifier is named for that GMP claim, and no audit report is shown. There is no NASC Quality Seal either (NASC, Quality Seal). We do not say the claim is false. We say you cannot check it from what is published.
Two reference codes appear on this site: lot MK-26/TH-4089 and CoA reference MK-4089-26-TH. The seller gave them to us. They are codes for finding a batch record. They are not a lab report. A third-party lab report for the C60 amount is not published.
Is this the official Mighty K9 website?
This site is run by Themightyk9, the Mighty K9 U.S. shop. It is a stocking partner. It is not the manufacturer, and it says so on every page.
The order buttons lead to the brand's secure checkout. Orders, tracking and refunds then go through the order desk at +1 (302) 200-3480. The brand also sells through a store of its own, mighty-k9.com. The website inbox, [email protected], deals with pages and typos only and has no view of orders.
When you buy through our order buttons, we earn money. We tell you so in the footer of every page. Our editorial team writes from the label and the product page, and we keep the doubts in.
Try Mighty K9 for 30 daysOne bottle was listed at $89.99 on the product page on October 11, 2026. Your final total appears on the order page, before you pay.
See today's price and guaranteeWe earn money when you order through this button. The order page shows the final price before you pay.
What does the sales page promise, and what is proven?
The sales page lists six benefits: healthy joint function, comfortable movement, less everyday stiffness, cell-level antioxidant support, energy and stamina, and skin and coat. Each one is the brand's wording.
C60 research is thin. A small 2012 rat study estimated longer life with C60 in olive oil (Baati et al., 2012), but a bigger 2021 mouse study saw no gain, and C60 oil left in strong light turned toxic (Grohn et al., 2021). One 9-day study in 6 beagles looked at a single blood marker (Hui et al., 2023). The PubMed search turned up no study of C60, ESS60 or this product on dog joints (PubMed search, C60 and dogs).
So the honest summary is short. The product is a convenient oil topper with a printed analysis. Whether the ESS60 does anything for a dog's joints has not been tested.
What should a first-time buyer check before ordering?
A short list saves phone calls later. Go through it once, with the bottle in mind.
Ask your vet
Mention it at the next visit, and ask before you start if any warning on this page fits your dog.
Check the total
Packs are $89.99, $269.97 and $539.94 for 1, 3 and 6 bottles. Shipping for one bottle is added at checkout.
Save the order email
The order ID inside is what the order desk asks for on every call.
Mark day 1
The money-back window is 30 days. Note how your dog moves on day 1 so you can compare.
Which dogs should skip it or see a vet first?
For puppies under 6 months, the sales FAQ says to see a vet first. Each serving is nearly pure fat, about 1.8 g, and that matters for some dogs.
- Dogs that have had pancreatitis, or that eat a vet-set low-fat diet (Merck Vet Manual, Pancreatitis).
- Dogs on any medicine, or being treated for a condition.
- Pregnant or nursing dogs. No safety data for C60 exists for them.
- A dog that is limping or crying out. Pain needs an exam first.
Which sources does this article use?
Every outside source this article cites is listed here. Product facts come from the label panel and the product page, as printed on this site.
- NASC Quality Seal requirements. National Animal Supplement Council, 2024.
- The prolongation of the lifespan of rats by repeated oral administration of (60)fullerene. Baati T, et al. Biomaterials, 2012.
- C60 in olive oil causes light-dependent toxicity and does not extend lifespan in mice. Grohn KJ, et al. GeroScience 43(2):579-591, 2021.
- Anti-Inflammatory and Antioxidant Effects of Liposoluble C60 at the Cellular, Molecular, and Whole-Animal Levels. Hui M, et al. Journal of Inflammation Research 16:83-93, 2023.
- PubMed search: (fullerene* OR C60) AND (dog OR dogs OR canine). National Library of Medicine, searched October 11, 2026.
- Pancreatitis in Dogs and Cats. Merck Veterinary Manual, 2025.
- FDA's Regulation of Pet Food. U.S. Food and Drug Administration, Center for Veterinary Medicine, 2024.
Frequently asked questions
What is Mighty K9 made of?
The label names three things: extra virgin olive oil, ESS60 and bacon flavor, with the oil called organic on the bottle front. A 2 mL serving carries 1.6 mg of ESS60, and nearly all the rest is oil.
Is Mighty K9 for people?
No, it is a dog product. Keep the bottle out of reach of children and other animals, and call Poison Control if a child swallows some.
Who makes Mighty K9?
The brand's sales page names Mighty-K9 in Houston, Texas, as the maker. The product page says it is made in Texas, USA. This website is the U.S. shop, a stocking partner, not the maker.
How much do I give my dog?
The label plan is one 2 mL serving a day over a meal, which equals two full droppers. Weight-based amounts are not published, so ask your vet about toy breeds.
Is Mighty K9 FDA approved?
No. Pet supplements get no FDA approval before sale (FDA, Pet food rules). The product is not intended to diagnose, treat, cure or prevent any disease.
What does one bottle cost?
The product page listed $89.99 a bottle on October 11, 2026, and a $64.99 sale price the same day. Check the order page for the final figure.
Our view
Our plain view: Mighty K9 is an easy daily oil topper with a short ingredient list and a printed label. Those are real points in its favor. The joint and aging claims are not backed by any dog study.
If you are curious, start from the facts above, run it past your vet, and treat the 30-day money-back window as a fair trial. If your dog needs pain relief, see your vet first.
Ready to look at the offer?A bottle covers one dog for 30 days, the same length as the money-back window.
See today's price and guaranteeWe earn money when you order through this button. The order page shows the final price before you pay.
Mighty K9 is not FDA approved, and no dog supplement is. It is not intended to diagnose, treat, cure or prevent any disease. Talk to your vet about any health question. Limping, pain or stiffness that does not ease needs a vet exam, not just a supplement. Ask your vet first if your dog is under 6 months, has had pancreatitis or needs a low-fat diet, is pregnant or nursing, takes any medicine, or is being treated for a condition.
Keep reading: Mighty K9 ingredients and label · Is Mighty K9 legit? · Where to buy Mighty K9
Last updated . Written by the Mighty K9 editorial team. Medically reviewed by Dr. Aimee Duffy, MD, Physician on .