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1 Bottle30 servings · about 30 days for one dog
$64.99per bottle
$64.99 total · about $2.17 a day
Shipping shown at checkout
- 30 servings of 2 mL
- About 30 days for one dog
- Covers the 30-day window
Official website · U.S. retail partner for Mighty K9
Mighty K9: daily olive oil drops for senior-dog mobility
Quick answer
Mixed into your dog's food once a day, Mighty K9 is bacon-flavored olive oil made for mobility in senior and active dogs. Every 2 mL serving brings 1.6 mg of ESS60, a C60 ingredient, plus 16.2 calories. It is a supplement rather than a veterinary drug; if your dog takes medicine, ask your vet before starting. Packs come with a 30-day money-back guarantee.
- Three ingredients, all on the label
- 2 mL a day, mixed into food
- Bacon flavor for picky eaters
- 30-day money-back, empty bottles OK
- Secure checkout
- 30-day money-back
- Ships from the U.S.
Written by the Mighty K9 editorial team · Updated
- 01Fill the dropper to 2 mL
- 02Mix it into food
- 03Once a day, same meal
| Serving size | 2 mL |
|---|---|
| ESS60 (C60) | 1.6 mg |
| Calories | 16.2 kcal |
| Crude fat (min) | 100% |
| Flavor | Bacon |
| Price | $64.99 a bottle |
- 60 mLper amber dropper bottle
- 30servings of 2 mL, about a month
- 3ingredients on the label
- 30 daysmoney-back window
- 2 mL serving, once a day
- Mixes into wet food or kibble
- Full label shown, 3 ingredients
- 30-day money-back, empty bottles OK
- Free shipping on orders over $100
How it works
How do you give Mighty K9 to a dog?
You fill the dropper to 2 mL and mix it into one meal a day. That is the whole routine, and keeping it steady is how you judge it.
- 01
Fill the dropper to 2 mL
The label lists a 2 mL serving and 30 servings per bottle. Check the sales page serving guide or your vet for small dogs.
- 02
Mix it into food
The sales FAQ says to mix it into your dog's food once a day. Most dogs take the bacon-flavored oil with wet food or kibble.
- 03
Keep one steady time
Pair it with the same meal every day, such as breakfast. A routine is the only way to judge any supplement.
- 04
Watch for 30 days
Note stairs, car jumps and walk length. Decide before the 30-day guarantee window closes.
What the sales FAQ adds
The sales FAQ says to mix Mighty K9 into your dog's food once daily. The sales page also says it can be given straight from the dropper. The label panel lists the 2 mL serving but prints no weight chart, so owners of very small dogs should check the sales-page serving guide and ask their vet. See how much to give and how to use it for the details.
One bottle holds 30 servings. For one dog at one serving a day, that is about a month, which lines up with the 30-day money-back window.
Ingredients
What is in Mighty K9?
Three ingredients, listed by weight: extra virgin olive oil, ESS60 and bacon flavor. Tap a card to see what research tested and what to watch for.
-
01ESS60
C60 fullerene (carbon-60) in olive oil
Sold as an antioxidant for joint comfort and cellular aging
1.6 mg per 2 mL serving
Evidence: Very limited (animal studies, none in arthritic dogs)What research testedRats: 1.7 mg/kg (Baati 2012). Mice: no lifespan benefit (Grohn 2021). Dogs: one 9-day study of 6 beagles
Watch forNo long-term safety data in dogs. C60 in oil can turn toxic when left in light (mouse study).
Full profile -
02Extra virgin olive oil
Olea europaea fruit oil
Carrier for C60; adds fat and calories
Almost all of the 2 mL serving (crude fat 100% min)
Evidence: No joint evidence in dogsWhat research testedNo canine joint trials found for olive oil
Watch for16.2 kcal of pure fat per serving. Ask your vet if your dog has had pancreatitis.
Full profile -
03Bacon flavor
Flavoring (source not listed)
Helps dogs accept the oil in food
Not listed
Evidence: Not a functional ingredientWhat research testedNot applicable (flavoring)
Watch forSource not listed. Ask the order desk if your dog has a food allergy.
Full profile
A short label is easy to check
Mighty K9 does not hide anything behind a proprietary blend. The only active ingredient, ESS60, has a printed amount: 1.6 mg per 2 mL, or 0.8 mg per mL. The rest is olive oil, which carries the C60, plus a bacon flavor so dogs accept it.
It also does not contain the joint ingredients many owners expect, such as glucosamine or fish oil. Read the full breakdown on the ingredients page and the deep dive on ESS60.
The label
What does the Mighty K9 label say?
The panel is a dog-food style Guaranteed Analysis, not a human Supplement Facts box. Tap each number to read that part.
Tap a number to see what that part of the label says.
- Brand line
Mighty K9 Canine Supplements: a brand wordmark with a dog-head K9 and a bone. No manufacturer name or address appears on this panel.
- Who it is for
A spaniel photo and the word Canine. The product is for dogs only.
- Serving size
Per 2 mL serving, 30 servings per container. One 60 mL bottle lasts about 30 days for one dog.
- Crude fat 100% (min)
The drop is pure oil. Crude protein is 0% (min) and crude fiber 0% (max).
- Moisture <0.1% (max)
Almost no water, as you would expect from an oil.
- ESS60 1.6 mg
The only ingredient with a printed amount: 1.6 mg per 2 mL, which is 0.8 mg per mL.
- AAFCO footnote
ESS60 is not recognized as an essential nutrient by the AAFCO Dog Food Nutrient Profiles.
- Calorie content
8,100 kcal ME/kg; 16.2 kcal ME per 2 mL serving (calculated). Count it with treats.
- Ingredients
Extra Virgin Olive Oil, ESS60 and Bacon Flavor, listed by weight. The front says organic; this list does not repeat it.
Guaranteed Analysis figures are minimums or maximums, not exact amounts (AAFCO, n.d. (reading labels)). The panel we have does not print directions, warnings or the maker's name, so check your physical bottle. Full transcript on the label page.
The numbers
How much fat and ESS60 does one serving add?
Two numbers matter on every serving: 16.2 calories of pure fat, and 1.6 mg of ESS60. Here is what each means for dogs of different sizes.
Calories: one serving as a share of resting needs
ESS60 per kilogram, next to the famous rat study
Claims vs evidence
Does Mighty K9 work for dog joints?
Nobody has published a study of Mighty K9 or ESS60 in dogs with joint problems. Each brand claim sits next to what the research actually shows.
Healthy jointsClaimSupports cartilage and connective tissue (sales page).
EvidenceNo study of ESS60 or this product in dogs with joint problems. (Hui et al., 2023)
Less stiffnessClaimHelps with everyday joint stiffness (sales page).
EvidenceNo canine trial. Weight control and exercise have the best support. (AVMA JAVMA News, 2021) (Penn Today, 2002)
Comfortable movementClaimSupports normal joint comfort (sales page).
EvidenceAmong supplements, only fish oil omega-3s have reasonable evidence in dogs. (Vandeweerd et al., 2012) (Barbeau-Gregoire et al., 2022)
Cellular agingClaimAntioxidant for healthy aging (sales page).
EvidenceRat data (6 per group) conflicts with a larger mouse study that found no benefit. (Baati et al., 2012) (Grohn et al., 2021)
| Study | Animals | What happened | What it means for your dog |
|---|---|---|---|
| Baati, 2012 (Baati et al., 2012) | Rats, 6 per group | C60 in olive oil rats lived longer than water or olive oil groups | Tiny and early. Not repeated in a larger study. |
| Grohn, 2021 (Grohn et al., 2021) | Mice, larger groups | No lifespan or healthspan benefit; C60 oil left in light turned toxic | Keep the bottle closed and out of light. |
| Hui, 2023 (Hui et al., 2023) | 6 beagles, 9 days | One blood marker dropped; no control group; about 150 mg a day | Not arthritic dogs, not ESS60, nearly 100 times one serving. |
| Burres, 2024 (Burres et al., 2024) | Rats, 14 days | No harm seen up to 3.8 mg/kg a day | Short-term only; authors linked to a C60 maker. |
What does have support for joint health in dogs: keeping a lean body weight, steady exercise and pain relief chosen by your vet (AVMA JAVMA News, 2021). In one long Labrador study, lean-fed dogs had hip arthritis at age 10 far less often, 42% versus 79% (Penn Today, 2002). Among supplements, omega-3 fish oil has the most evidence (Vandeweerd et al., 2012). More on the claims vs evidence page.
Fair view
What are the pros and cons of Mighty K9?
Pros
- Simple: one 2 mL serving mixed into food once a day
- Bacon flavor helps picky dogs take it
- Only three ingredients, and the ESS60 amount is printed
- Calories are printed, so you can count them
- 30-day money-back guarantee that accepts empty bottles
- A real order desk that can see your order
Cons
- No study of ESS60 or this product in dogs with joint problems
- C60 evidence is mixed: a small rat study yes, a larger mouse study no
- Pure fat, 16.2 calories a serving; not for dogs prone to pancreatitis
- Label panel lacks directions, warnings and the maker's name
- No published lab report for the bottle you get
- Same price per bottle in every pack; return postage is on you
Daily routine
When should I give my dog Mighty K9?
Any one meal works. Pick breakfast or dinner and keep it the same, so you can tell what changes and what does not.
- Breakfast, about 7:30
Mix the 2 mL serving into the morning meal. The sales FAQ says once daily, mixed into food.
- Or dinner, about 6:00
If your dog eats one main meal at night, use that meal. Pick one and keep it.
- Short, steady walks
Regular low-impact exercise is one of the pillars of joint care that vets recommend.
- A soft bed at night
Older dogs with stiff joints rest better on a padded, non-slip bed.
Timing comes from the sales FAQ; the label panel lists the serving, not the time of day. Exercise and weight as joint pillars (AVMA JAVMA News, 2021).
Track what you can see
Write down three things once a week: how your dog takes the stairs, whether it jumps into the car, and how long a normal walk lasts. A simple log beats memory. The what to expect page has a log you can copy.
Is it right for my dog?
Which dogs should not take Mighty K9 without a vet?
Five quick questions. A yes on any of them means a conversation with your vet first.
Limping that lasts more than a day or two needs a vet exam, and sudden or severe lameness should be seen right away (Cornell Riney Canine Health Center, n.d.). Never give a dog human pain relievers (FDA, n.d. (pain relievers)). For poison emergencies, call ASPCA Animal Poison Control at (888) 426-4435 (a fee may apply) (ASPCA, n.d.). Full details on side effects and safety and which dogs it suits.
Pricing
How much does Mighty K9 cost?
$64.99 a bottle on the sales page, with free shipping on orders over $100. Every pack is the same price per bottle, so buy what you need.
Sales page suggests 3+
3 Bottles90 servings · about 90 days for one dog
$64.99per bottle
$194.97 total · about $2.17 a day
Free shipping (orders over $100)
- 90 servings of 2 mL
- About 3 months for one dog
- Free shipping on orders over $100
Longest supply
6 Bottles180 servings · about 180 days for one dog
$64.99per bottle
$389.94 total · about $2.17 a day
Free shipping (orders over $100)
- 180 servings of 2 mL
- About 6 months for one dog
- Free shipping on orders over $100
Prices as listed on the sales page on October 11, 2026: $64.99 a bottle, with free shipping on orders over $100. You see the final total, shipping and tax on the secure order page before paying. We do not repeat the crossed-out "regular price", because we cannot verify that anyone ever paid it.
How many dogs?
You need 3 bottles: 3-bottle pack, $194.97 with free shipping.
At $64.99 a bottle and one 2 mL serving per dog per day. Orders over $100 ship free. This is only a planning aid; the final total is on the order page.
Guarantee
What is the Mighty K9 money-back guarantee?
The sales page offers 30 days, and it accepts empty bottles. Return shipping is not refunded. Here is how the month plays out.
- Day 1
Order and keep the email
Your order ID is the key to every refund. Save the confirmation email.
- Day 10
Check in
Give 2 mL a day with the same meal. Note stairs, car jumps and walk length.
- Day 20
Decide
Not for your dog? Contact the order desk now, while there is time to get a return number and mail the bottles.
- Day 30
Window closes
The sales page offers 30 days, empty bottles included. Return shipping is not refunded.
To claim, call +1 (302) 200-3480 with your order ID or email [email protected] for a return number, then mail the bottles with your full name, email and order ID. Read the guarantee and refund steps before you post anything.
Reviews
What do Mighty K9 customers say?
We only publish reviews the order desk has matched to a real order, with the buyer's permission. None are verified yet, so these slots are empty on purpose.
4.4out of 5
Based on 631 verified ratings
Filled in only from reviews the order desk has matched to a real order. How we check reviews.
I travel for installs. Picky eater. Mixed into wet food. He took it. That was the win. I keep it by the hymnals. I take it when I open the tackle box.
Pack review 1, as supplied
I teach, then I commute. Vet still sees him. This is not a replacement for that visit. I keep it in the tackle box. I take it when the ferry horn goes.
Pack review 2, as supplied
I keep a workshop in the garage. Reordered so we don't gap. Habit beat the pitch. I keep it on the sewing table. I take it after I start the mixer.
Pack review 3, as supplied
The sample reviews and photos in the seller's brief are not real customers, so we do not show them. Fake and AI-written reviews are banned under the FTC rule of 2024 (FTC, 2024). See how we check reviews.
The brand
Who sells Mighty K9, and who runs this site?
Getmightyk9 is a U.S. retail partner for Mighty K9. We are not the manufacturer, and we earn money when you buy through our order links. Every order button takes you to the official sales page and checkout. Tracking and refunds on a placed order go through the order desk at +1 (302) 200-3480, which can see your order. Our own inbox, [email protected], handles questions about these pages.
Read about us, our editorial standards and the testing and quality page to see how we check what we publish.
Guides and blog
What should I read before buying a dog joint supplement?
9 min read
C60 Lifespan Studies: The Rat Study vs the Mouse Study, Side by Side
The 2012 rat study and the 2021 mouse study, compared row by row, and what the gap means for dogs.
Read the article9 min read
Is Olive Oil Safe for Dogs? Fat, Calories and When to Skip It
Olive oil for dogs: the fat, the calories, pancreatitis risk, and when fish oil is the better pick.
Read the article
8 min read
How to Spot Fake Pet Supplement Reviews Before You Buy
The FTC's fake review rule, the red flags to watch for, and what an honest dog review looks like.
Read the articleFAQ
Mighty K9 questions, answered
No question matches. Nothing here yet. Try a different search word.
What is Mighty K9?
Mighty K9 is a liquid oil drop for dogs: extra virgin olive oil with 1.6 mg of ESS60 (a C60 ingredient) and bacon flavor in each 2 mL serving. A 60 mL bottle holds 30 servings. The sales FAQ says to mix it into your dog's food once daily.
Does Mighty K9 really work for joints?
No published study has tested Mighty K9 or ESS60 in dogs with joint problems. A small rat study reported longer lifespans with C60, but a larger mouse study found no benefit (Grohn et al., 2021). Weight control, exercise and vet-chosen pain relief have the best support for canine joints.
Is Mighty K9 safe for dogs?
Its ingredients are olive oil, ESS60 and bacon flavor. Each serving is 100% fat and adds 16.2 calories, so dogs with a history of pancreatitis or on a low-fat diet need a vet's okay first (Steiner, Merck Veterinary Manual, 2025). Long-term safety data on C60 in dogs does not exist.
How much Mighty K9 should I give my dog?
The label lists a 2 mL serving and 30 servings per bottle. It prints no weight chart, and the sales page links to its own serving guide. For a small dog, a puppy or a dog with health problems, ask your vet before you start.
Is Mighty K9 approved by the FDA?
No. U.S. law has no dietary supplement category for animals, and Mighty K9 is not an approved animal drug (AAFCO, n.d. (food vs drug)). It must not claim to treat or prevent disease. Approved prescription options for arthritis pain do exist, and they come from your vet.
How much does Mighty K9 cost?
The sales page lists $64.99 a bottle. Three bottles cost $194.97 and six cost $389.94, and orders over $100 ship free. The price per bottle is the same in every pack. The order page shows the final total before you pay.
What is the Mighty K9 refund policy?
The sales page offers a 30-day money-back guarantee that includes empty bottles. Return shipping is not refunded. Call +1 (302) 200-3480 with your order ID or email [email protected] for a return number, then mail the bottles with tracking.
Where can I buy Mighty K9?
Buy through the official sales page; every order button on this site goes there. We cannot confirm listings on Amazon, Chewy or Walmart, and the money-back guarantee may not cover bottles bought from other sellers.
More answers on the full FAQ page.
U.S. retail partner for Mighty K9
Ready to try Mighty K9?
Pick a pack. One 2 mL serving a day in your dog's food, and every pack covers the 30-day money-back window.
1 bottle$64.9930 days · Shipping at checkoutSales page pick3 bottles$194.9790 days · Free shipping6 bottles$389.94180 days · Free shipping
- Secure checkout
- 30-day money-back
- Ships from the U.S.
