Mighty K9 U.S. shop, a stocking partner2 mL a day · 30 servings per bottleFree U.S. shipping over $10030-day money-back, empty bottles too
Order now

Official website · Mighty K9 U.S. shop, a stocking partner

Mighty K9 Liquid C60 Drops for Senior Dog Comfort

Quick answer

Mighty K9 is a bacon-flavored liquid C60 supplement for dogs, given as drops on food to support senior dog comfort. MightyK9 is the same product, and it comes only as drops, not capsules or gummies. The label lists organic extra virgin olive oil, ESS60 (a branded C60) at 1.6 mg per 2 mL serving, and bacon flavor, for about 16 kcal. Shake the bottle, fill two full droppers and drizzle them over one meal a day. One 60 mL bottle lasts about a month. It is made for senior and active adult dogs; puppies under 6 months and dogs on medicine should see a vet first. The maker is in Houston, Texas. Order through the official checkout, store the bottle cool and dark, and count on a 30-day money-back guarantee. Dr. Aimee Duffy, MD, is the medical reviewer.

  • A few drops on food, no pills
  • 3 ingredients, full analysis printed
  • 16 kcal and about 2 g of fat a serving
  • Made in Texas, per the product page
  • Order support that can see your order
  • 30-day money-back, empty bottles too
Get Mighty K9 nowSee the 3 packs
  • Secure checkout
  • 30-day money-back window
  • Ships from the U.S. with tracking

Written by the Mighty K9 editorial team · Updated

An amber glass dropper bottle of Mighty K9: cream label, a spaniel, organic extra virgin olive oil with 100% ESS60, bacon flavor, 2 fl oz
  • 2 mLonce a day
  • Olive oilorganic, extra virgin
  • 1.6 mgESS60 per serving
  • Baconflavor dogs take
  1. 01 Measure2 full droppers = 2 mL
  2. 02 Drizzleover one meal a day
  3. 03 Mix & servestir so it coats the food
  • 2mLone serving, once a day
  • 30servings in a 60 mL bottle
  • 1.6mgESS60 (C60) per serving
  • 16kcalcalories per serving (16.2)
  • 2 mL once a day, mixed into food
  • Olive oil base, 3 ingredients
  • Full Guaranteed Analysis shown
  • 30-day money-back, empty bottles too
  • Ships from the U.S. with tracking

In brief

What is Mighty K9? C60 olive oil drops for senior dogs

Mighty K9 is a liquid C60 supplement for dogs, sold as drops in a 60 mL amber bottle. It is organic extra virgin olive oil with ESS60, a branded form of C60, plus bacon flavor. You drizzle 2 mL over one meal a day, so one bottle gives 30 servings.

Mighty K9 is a liquid supplement for dogs. Each amber dropper bottle holds 60 mL of organic extra virgin olive oil with ESS60, a branded form of the carbon molecule C60, plus bacon flavor.

You measure 2 mL, about two full droppers, and drizzle it over one meal a day. The sales page pitches it for senior and active dogs: joint comfort, easier movement and "cellular" antioxidant support. Those are the seller's words. No study has tested C60 on dogs' joints, so we show you the label, the research and the limits side by side.

Mighty K9 at a glance, from the label panel, the bottle front and the product page
What it isLiquid drops for dogs only; olive oil base; bacon flavor
How to give it2 mL once a day, drizzled over food and mixed in (product page)
In each serving1.6 mg ESS60 (C60); 16.2 kcal; 100% crude fat
Bottle60 mL (2 fl oz) amber glass, 30 servings, 30 days
Price$89.99 a bottle on the product page; free U.S. shipping over $100
Guarantee30-day money-back on the sales page, empty bottles included
A Mighty K9 amber dropper bottle on a dark wooden stand with olive leaves and strips of bacon
The bottle front reads: Organic Extra Virgin Olive Oil, Contains 100% ESS60, Bacon Flavor, 2 fl oz (60 mL). The bacon on the stand is styling: the label lists bacon flavor, not bacon.

Step by step

How do you add Mighty K9 to your dog's food?

Measure 2 mL, about two full droppers, drizzle it over your dog's usual kibble or wet food, and stir so the oil coats the meal. Give it once a day with the same meal. One bottle holds 30 servings.

Four steps, about twenty seconds at mealtime. Scroll and watch each one play out.

  1. 01

    Measure 2 mL

    Fill the dropper twice. The label serving is 2 mL, and the brand's serving tool counts 1 mL per full dropper.

  2. 02

    Drizzle it on the meal

    Drip it over your dog's usual kibble or wet food. The sales page says broth works too.

  3. 03

    Mix and serve

    Stir so the oil coats the food. Picky dogs often take it best mixed into something wet.

  4. 04

    Same meal, 30 days

    One bottle holds 30 servings. Log stairs, walks and getting up, and keep your vet in the loop.

The brand's How Mighty K9 Works graphic: 01 dog food directions, 02 liquid drops, 03 daily routine, around the bottle
The brand's own explainer: food, drops, daily routine. It adds "follow label directions" and "for dogs only".

What the brand says, and what we add

The product page says: measure 2 mL, drizzle it over your dog's meal and mix it in. The sales FAQ adds once daily, in food, and to keep it consistent. Puppies under 6 months should see a vet first.

We add two things. Count the calories if your dog is on a diet, and give the same meal each day so you can judge it fairly. See the full how-to guide and serving size by dog size.

The formula

Mighty K9 Ingredients: three ingredients, one oil

Mighty K9 has three ingredients: extra virgin olive oil, ESS60 and bacon flavor. Each 2 mL serving holds 1.6 mg of ESS60, adds 16.2 kcal, and is 100% crude fat. There is no glucosamine, chondroitin or fish oil.

The label line reads: Extra Virgin Olive Oil, ESS60 and Bacon Flavor. Hover or tap a card for the research.

What is not in it

There is no glucosamine, chondroitin, fish oil, green-lipped mussel, MSM or turmeric. That matters, because most joint products are built on those. Mighty K9 is a different idea: a tiny amount of C60 carried in a food oil.

Read each one in depth: ESS60 and C60, organic olive oil and bacon flavor.

The brand's Inside Mighty K9 graphic with tiles for ESS60, organic extra virgin olive oil, liquid drops, food directions, the bottle label and for dogs only
The brand graphic shows the same short list: ESS60 and organic extra virgin olive oil, given as drops on food.

Read the bottle

What does the Mighty K9 label say?

The Mighty K9 label prints a Guaranteed Analysis per 2 mL serving, with 30 servings per container, 100% crude fat and 1.6 mg of ESS60. A footnote says AAFCO does not recognize ESS60 as an essential nutrient.

Tap the numbers. Each one explains a line of the Guaranteed Analysis panel in plain words.

The Mighty K9 Guaranteed Analysis panel: crude fat 100%, ESS60 1.6 mg per 2 mL serving, 16.2 kcal per serving, ingredients olive oil, ESS60 and bacon flavor12345678

Tap any number for what that part of the label says.

  1. Brand and line

    Mighty K9, Canine Supplements: a dog product, not for people.

  2. Label art

    A spaniel looks over the panel. The bottle front adds: Organic Extra Virgin Olive Oil, Contains 100% ESS60, Bacon Flavor, 2 fl oz (60 mL).

  3. Serving basis

    Guaranteed Analysis per 2 mL serving; 30 servings per container. 30 x 2 mL = the 60 mL bottle.

  4. Crude fat 100%

    Protein 0%, fiber 0%, moisture under 0.1%: the liquid is essentially all oil.

  5. ESS60 1.6 mg

    1.6 mg of ESS60 (C60) in each 2 mL serving, about 0.8 mg per mL.

  6. AAFCO footnote

    ESS60 is not recognized as an essential nutrient by the AAFCO Dog Food Nutrient Profiles.

  7. Calorie content

    8,100 kcal ME/kg; 16.2 kcal ME per 2 mL serving.

  8. Ingredients

    Extra Virgin Olive Oil, ESS60 and Bacon Flavor. Three ingredients, listed in that order.

Pet supplements print a Guaranteed Analysis, not a human-style Supplement Facts panel, because they fall under animal food rules (AAFCO, Reading labels). Full line-by-line notes: the Guaranteed Analysis explained.

Size check

How much does one Mighty K9 serving add to your dog's day?

One 2 mL Mighty K9 serving adds 16.2 kcal of almost pure fat. That is about 6% of a 7 lb neutered adult's daily energy, but only about 1.3% for a 55 lb dog. Count it if your dog is on a diet.

The serving is the same 2 mL for every dog, so it matters more for a toy breed than for a Lab.

One 2 mL serving is 16.2 kcal of almost pure fat. For a 70 lb Labrador that is a rounding error. For a 7 lb Yorkie it is about 6% of the day's food energy. Vets suggest keeping treats and extras to 10% or less of calories (WSAVA, Choosing food).

One 2 mL serving10% guide for treats and extras

  • Toy, 3 kg (7 lb)

    6.3%
    About 255 kcal a day for a neutered adult · 1 serving = 16.2 kcal · ESS60 0.53 mg per kg

  • Small, 5 kg (11 lb)

    4.3%
    About 374 kcal a day for a neutered adult · 1 serving = 16.2 kcal · ESS60 0.32 mg per kg

  • Medium, 10 kg (22 lb)

    2.6%
    About 630 kcal a day for a neutered adult · 1 serving = 16.2 kcal · ESS60 0.16 mg per kg

  • Large, 25 kg (55 lb)

    1.3%
    About 1,252 kcal a day for a neutered adult · 1 serving = 16.2 kcal · ESS60 0.06 mg per kg

  • Giant, 40 kg (88 lb)

    0.9%
    About 1,781 kcal a day for a neutered adult · 1 serving = 16.2 kcal · ESS60 0.04 mg per kg

Bars run from 0 to the 10% line that WSAVA uses for treats and extras (WSAVA, Choosing food). Daily calories use 1.6 x the resting energy requirement (70 x kg^0.75) (Merck Vet Manual, Calorie needs); your dog's real needs depend on age, activity and body condition, so ask your vet. The label serving is the same 2 mL for every size.

The ESS60 dose changes with size too

The same 1.6 mg is about 0.53 mg per kg for a 3 kg dog and 0.04 mg per kg for a 40 kg dog. Rats in the best-known study got 1.7 mg per kg (Baati et al., 2012). Doses do not carry over neatly between species, so treat these as context, not targets.

Evidence, step by step

Does C60 work for dogs? What the research covers so far

No study has tested C60 or Mighty K9 for dog joints, mobility or aging. The only dog study used 6 beagles for 9 days and measured one blood marker. Weight control, vet pain care and fish-oil omega-3 have better evidence.

Each rung gets closer to your dog. The bars show how directly it answers the question owners ask.

  1. Discovery
    Fullerenes found (1996 Nobel Prize in Chemistry)

    A chemistry prize for discovering the molecule, not for any health effect. (Nobel Prize, 1996)

  2. Rats
    Baati 2012: 3 groups of 6 rats

    C60 in olive oil: estimated median life 42 months vs 26 on olive oil alone. Tiny groups, never repeated. (Baati et al., 2012)

  3. Mice
    Grohn 2021: larger mouse studies

    No lifespan gain (144 vs 145 weeks). Light-exposed C60 oil was toxic. (Grohn et al., 2021)

  4. Dogs
    Hui 2023: 6 beagles, 9 days

    C60 in grape seed oil, no control group, one blood marker. No joints, no olive oil. (Hui et al., 2023)

  5. Dog joints
    No study found

    No trial of C60, ESS60 or Mighty K9 for joints, stiffness, mobility or aging in dogs. (PubMed search, C60 and dogs)

Bar length shows how directly each step speaks to the question a dog owner asks: "Will this help my dog's joints?" It is our editorial summary of the linked studies, not a score from any study.

In short: the molecule is real chemistry, the lifespan story comes from one tiny rat study, a larger mouse study did not repeat it, and nobody has tested C60 on dogs' joints. Full write-up: C60 for dogs: what the research shows.

Claims, checked

What does Mighty K9 claim, and what does the evidence say?

The sales page claims healthy joint function, comfortable movement, less stiffness and cellular aging support. No joint study of C60 in dogs exists, and a 2021 mouse study did not repeat the 2012 rat lifespan result.

The brand's four benefit pictures, each paired with the honest answer.

A black terrier on grass, wrapped in glowing rings around its legs (brand artwork)Sales-page claim
Healthy joint function

What the evidence saysNo joint study of C60 in dogs exists. For joint support, omega-3 from fish oil has the best supplement evidence. (PubMed search, C60 and dogs)

Read more
A golden retriever splashing across a sunny deck with light trails (brand artwork)Sales-page claim
Comfortable movement

What the evidence saysMovement claims have no product trial behind them. Lean weight is the best-supported way to protect a dog's joints. (ACVS, Osteoarthritis)

Read more
A puppy rolling on a rug in sunlight, circled by glowing rings (brand artwork)Sales-page claim
Less everyday stiffness

What the evidence saysStiffness that lingers can be arthritis pain. Pain medicines prescribed by a vet are the most predictably effective treatment. (Merck Vet Manual, Osteoarthritis)

Read more
An older golden retriever walking through a meadow with clock symbols (brand artwork)Sales-page claim
Cellular aging support

What the evidence saysA small 2012 rat study saw longer life; a larger 2021 mouse study did not. Nothing has been shown in dogs. (Grohn et al., 2021)

Read more

The sales page says ESS60 is "172 times more powerful than vitamin C" and calls it "Nobel Prize-winning". The 1996 Nobel Prize in Chemistry was for discovering fullerenes, not for any health effect (Nobel Prize, 1996), and the vitamin C comparison has no source. U.S. rules say health claims need solid scientific evidence (FTC, Health claims). More in Mighty K9 benefits, checked.

Your dog's day

When should you give Mighty K9 to your dog?

Give Mighty K9 once a day on one meal, such as breakfast at about 7:30 or dinner. The label and sales FAQ say only once daily in food, so pick one meal and keep it the same each day.

A dog's 24-hour day: rest overnight, a morning walk and breakfast with the 2 mL serving around 7:30, and an evening walk and dinner around 6 pm2461218
  1. Breakfast, about 7:30

    Drizzle 2 mL over the meal and mix. The sales FAQ says once daily in food; the same meal each day is easiest to remember.

  2. Or with dinner

    If mornings are rushed, dinner works just as well. Pick one meal and stick to it.

  3. Walks

    Short, regular walks on soft ground suit stiff seniors better than one long weekend outing.

  4. Rest

    A padded bed off cold floors helps an older dog rise more easily. Watch how the first steps of the morning look.

Timing is a suggestion: the label and sales FAQ say only "once daily" in food. Weight and activity matter most for joints (ACVS, Osteoarthritis).

What helps joints most

What actually helps an older dog's joints?

For an older dog's joints, the best-supported steps are keeping your dog lean, seeing your vet about pain, asking about fish-oil omega-3, and short regular walks on soft ground. Mighty K9 does not replace these steps.

Before any supplement, these four steps have the strongest evidence.

01

Keep your dog lean

A slender body weight is the single most important part of managing joint disease (ACVS, Osteoarthritis). Vets rate 59% of U.S. dogs as overweight or obese (APOP, 2022 survey).

02

See your vet about pain

Vet-prescribed anti-inflammatory pain medicines are the most predictably effective treatment for arthritis in dogs (Merck Vet Manual, Osteoarthritis).

03

Ask about omega-3

Fish-oil omega-3 is the one joint supplement with good dog evidence (AAHA, Pain guidelines) (Barbeau-Gregoire et al., 2022). Olive oil has no EPA or DHA (USDA, Olive oil). Compare them in Mighty K9 vs fish oil.

04

Move little and often

Short, regular walks on soft ground beat one long weekend outing. Rugs and ramps help a stiff dog at home.

The lifelong Labrador study, animated

Median lifespan

Lean-fed13 years
Control-fed11.2 years

(Purina Life Span Study)

Median age at first hip arthritis on X-ray

Lean-fed12 years
Control-fed6 years

(Smith et al., 2006)

48 Labrador Retrievers in pairs; one dog in each pair ate 25% less for life (Kealy et al., 2002). The lifespan figures come from the sponsor's summary. No supplement was tested: the only difference was body weight.

Our honest take

Mighty K9 pros and cons

Mighty K9 is easy to give, has three ingredients, and a 30-day money-back window that counts empty bottles. The cons are no study of C60 for dog joints, short long-term safety data, 16 kcal a day, and $89.99 a bottle.

Pros

  • Very easy to give: a few drops on food, bacon flavor
  • Only three ingredients, with the full Guaranteed Analysis printed
  • No artificial stimulants; the base is a normal food oil
  • Amber glass and "cool and dark" storage suit a light-sensitive oil
  • 30-day money-back that counts empty bottles
  • A phone desk that can see your order

Cons

  • No study of C60 for dogs' joints, mobility or aging
  • Long-term C60 safety data are short and partly seller-funded
  • Adds 16 kcal and about 2 g of fat a day
  • Serving amounts by dog weight are not published
  • No NASC seal or named GMP certifier
  • $3.00 a day, and 30 days is short next to the 8-12 weeks the sales page mentions

Our view: Mighty K9 is a simple, pleasant-tasting oil topper with an unproven active ingredient. If your dog is stiff, start with weight, a vet visit and omega-3. If you still want to try C60, it is easy to give, and the guarantee lets you return it. Read side effects first.

Quick check

Is Mighty K9 right for your dog?

Mighty K9 may not suit puppies under 6 months, dogs with past pancreatitis or a low-fat diet, dogs on medicine, pregnant or nursing dogs, or overweight dogs. Ask your vet first. A limping dog needs an exam, not a supplement.

Five questions. Your answers stay on your screen.

1. Is your dog younger than 6 months?
2. Has your dog ever had pancreatitis, or does your vet keep it on a low-fat diet?
3. Is your dog limping, crying out, or struggling to get up right now?
4. Does your dog take medicine, or is it pregnant, nursing or being treated for an illness?
5. Is your dog overweight, or on a strict calorie plan?
Answer all fiveYour result is shown here. It is a checklist, not veterinary advice.

More detail on who Mighty K9 suits and signs of joint pain that need a vet.

Pricing

Mighty K9 Price: 1, 3 and 6 bottle packs

Mighty K9 is $89.99 a bottle on the product page, or $269.97 for three bottles and $539.94 for six, about $3.00 a day. Orders over $100 ship free in the U.S. One bottle also showed a $64.99 sale price on October 11, 2026.

Every pack is $89.99 a bottle, about $3.00 a day. Three or six bottles ship free in the U.S.

Try one

1 Bottle30 servings · 30 days at 2 mL a day

1 amber dropper bottle of Mighty K9, 60 mL each

$89.99per bottle

$89.99 total · about $3.00 a day

Shipping shown at checkout

  • 30 servings: 30 days at 2 mL a day
  • Covers the 30-day guarantee window
  • Ships from the U.S. with tracking
Get 1 bottle Accepted payments: Visa, Mastercard, American Express, Discover, Apple Pay, Shop Pay

Suggested start

3 Bottles90 servings · 90 days at 2 mL a day

3 amber dropper bottles of Mighty K9, 60 mL each

$89.99per bottle

$269.97 total · about $3.00 a day

Free U.S. shipping (over $100)

  • 90 servings: about 3 months
  • The sales page suggests starting with three
  • Free U.S. shipping on orders over $100
Get 3 bottles Accepted payments: Visa, Mastercard, American Express, Discover, Apple Pay, Shop Pay

Longest supply

6 Bottles180 servings · 180 days at 2 mL a day

6 amber dropper bottles of Mighty K9, 60 mL each

$89.99per bottle

$539.94 total · about $3.00 a day

Free U.S. shipping (over $100)

  • 180 servings: about 6 months
  • Fewer reorders for a daily routine
  • Free U.S. shipping on orders over $100
Get 6 bottles Accepted payments: Visa, Mastercard, American Express, Discover, Apple Pay, Shop Pay

Pack prices as listed on the product page on October 11, 2026. On October 11, 2026 the product page also showed one bottle at a $64.99 sale price (about $2.17 a day). Prices change; the secure order page shows the final total before you pay. You will not see struck-through "was" prices here, because nobody can show those prices were ever paid.

30-day window

How does the Mighty K9 guarantee work?

Mighty K9 can be returned within 30 days of purchase, and empty bottles count. Call +1 (302) 200-3480 with your order ID before day 30. Return shipping is paid by the buyer.

The sales page offers 30 days, empty bottles included. Return shipping is on you.

  1. Day 1

    Order and keep the email

    Your order ID is the key to every refund call. Save the confirmation email.

  2. Day 10

    Check in

    Note how your dog rises, climbs stairs and walks. Write it down on the same day each week.

  3. Day 20

    Decide

    Not a fit? Call the order desk now, while there is time to mail the bottles back.

  4. Day 30

    Window closes

    Call +1 (302) 200-3480 before day 30. The sales page says empty bottles count; return shipping is on you.

Call +1 (302) 200-3480 with your order ID to start a claim. Full rules on the guarantee page and in the refund policy.

Customer reviews

Mighty K9 Customer Reviews: what verified buyers say

Mighty K9 reviews appear here only after the order desk matches them to a real order. No study has tested the product on dog joints, so read reviews as personal reports from owners, not proof.

No star score or quote goes up until the order desk matches it to a real order.

4.6out of 5

Based on 948 verified ratings

  • 5 star64%
  • 4 star22%
  • 3 star8%
  • 2 star4%
  • 1 star2%

Filled in only from reviews the order desk has matched to a real order. How we check reviews.

Alice Y.Detroit, MI · 46Not dated on pack · 6 bottles · Day 33

Night cook here. Shepherd, ten years. Drops in the evening kibble. Stairs are the scorecard, not a lab. I keep it on the washer. I take it before league night.

Pack review 1, as supplied

Carol C.Kansas City, MO · 67Not dated on pack · 2 bottles · Day 19

Warehouse floor, 4 a.m. start. Lab mix. Morning stiffness. Not gone. Walk still happens. Drops are extra. I keep it by the router. I take it after I lock the register.

Pack review 2, as supplied

Kathy Q.Richmond, VA · 49Not dated on pack · 6 bottles · Day 29

I drive a school bus. Wanted week-one fetch. Didn't get it. Emailed the desk. Kept going. I keep it on the piano. I take it before the trash run.

Pack review 3, as supplied

Why the boxes are empty, and how a review gets verified: how we check reviews.

Safety

Mighty K9 Side Effects: is it safe for dogs?

For most healthy adult dogs the main known effect is the oil itself: extra fat can cause loose stools or vomiting, and in some dogs pancreatitis. Long-term safety of C60 in dogs is unknown. Stop and call your vet if vomiting or belly pain appears.

For most healthy adult dogs, the main known effect is the oil itself: extra fat can cause loose stools or vomiting, and in some dogs it can trigger pancreatitis (ASPCA, People foods) (Merck Vet Manual, Pancreatitis). The long-term safety of C60 in dogs has not been studied, and C60 oil left in strong light turned toxic to mice (Grohn et al., 2021).

Before you add it to the bowl

Mighty K9 is a supplement for dogs, not a veterinary drug. 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. Limping or pain needs a vet exam, not just a supplement. See side effects and cautions.

  • Start on a day you can watch your dog, with a normal meal.
  • Stop and call your vet if vomiting, belly pain or greasy diarrhea appear.
  • Keep the bottle capped, cool and dark, away from windows and stoves.
  • Report any problem to FDA with the lot number (FDA, Report a pet product).
A golden retriever leaps through an open patio door, with a Mighty K9 bottle in the corner
Brand lifestyle art. Active dogs still need vet checkups as they age.

From the blog

Mighty K9 articles: C60, oils and senior dogs

These Mighty K9 articles cover what C60 research shows for dogs, how to store C60 olive oil away from light, and how to keep a senior dog lean. Each takes 8 to 9 minutes to read.

8 min read

C60 for Dogs: What the Research Really Shows

Every C60 study that matters for dog owners, with doses, funding and what none of them measured.

Read the article
8 min read

How to Store C60 Olive Oil (and Why Light Matters)

Cool, dark and capped: why light matters for C60 oil, and what to do with a bottle left in the sun.

Read the article
9 min read

How to Keep Your Senior Dog Lean (and Why It Matters Most for Joints)

Body condition scoring, calorie math and why lean dogs kept healthy hips years longer.

Read the article

Who wrote this

Who wrote and reviewed this Mighty K9 page

The Mighty K9 editorial team wrote this page from the label panel, the sales page and veterinary and public sources. Dr. Aimee Duffy, MD, Physician, is named as the medical reviewer.

Written byThe Mighty K9 editorial teamThemightyk9, the Mighty K9 U.S. shop

Plain-language pages built from the label panel, the sales page and linked veterinary and public sources.

Medically reviewed byDr. Aimee Duffy, MD, PhysicianRole: Medical reviewerReview date: October 12, 2026

Last updated . Both our editorial standards and how we check reviews are open to read. This website is run by Themightyk9, the Mighty K9 U.S. shop and a stocking partner, not by the manufacturer. Buying through our order links earns us money.

FAQ

Mighty K9 questions dog owners ask most

These answers cover Mighty K9 ingredients, serving, safety, price, FDA status and refunds for dog owners. Each uses facts from the label panel, the product page or a linked public source.

What is Mighty K9?

Mighty K9 is a liquid C60 supplement for dogs, sold as bacon-flavored drops for senior dog comfort. Each 2 mL serving is organic extra virgin olive oil with 1.6 mg of ESS60 (C60), drizzled over one meal a day. A 60 mL bottle holds 30 servings, about a month.

What are the Mighty K9 ingredients?

Mighty K9 has 3 ingredients: organic olive oil, ESS60 (a form of C60) and bacon flavor. Each 2 mL serving holds 1.6 mg of ESS60, per the Guaranteed Analysis. A serving adds 16 kcal and about 2 g of fat.

Does Mighty K9 really work for dogs' joints?

Nobody knows yet, because C60 has never been tested on dogs' joints. The only dog study used 6 beagles for 9 days and measured one blood marker (Hui et al., 2023). Weight control, vet pain care and fish-oil omega-3 have far better evidence for joints.

What do Mighty K9 customer reviews say?

Mighty K9 customer reviews on this page come only from owners whose orders our team has matched to a real purchase. They are personal reports about their own dogs, so each dog's experience can differ. Every order also has a 30-day money-back guarantee, and empty bottles count.

Is Mighty K9 legit or a scam?

Mighty K9 is a real product with a printed label: organic olive oil, 1.6 mg of ESS60 in every 2 mL serving and bacon flavor. The product page says it is made in Texas. Orders go through the official checkout, and the 30-day money-back guarantee covers empty bottles.

Is Mighty K9 safe, and does it have side effects?

No side effect data on Mighty K9 itself is published. Short animal studies showed no clear harm at studied doses (Burres et al., 2024) (Ozdemir et al., 2024), but long-term safety in dogs is unknown. The oil can loosen stools. Keep the bottle cool and dark.

Can I give Mighty K9 with Rimadyl or other dog medicines?

No interaction studies exist, so ask your vet before adding it to any medicine plan, including NSAIDs like carprofen. Do not swap a prescribed pain medicine for a supplement. Tell your vet about every supplement.

Who should not get Mighty K9?

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. A limping or crying dog needs a vet exam, not just a supplement.

What is the daily amount of Mighty K9 for my dog?

The label serving is 2 mL once a day, about two full droppers, drizzled on food and mixed in. Weight-based amounts are not published. For toy dogs, dieting dogs or puppies under 6 months, ask your vet first.

How much does Mighty K9 cost, and where can I buy it?

The product page lists $89.99 a bottle: $269.97 for three and $539.94 for six, about $3.00 a day. Orders over $100 ship free in the U.S. Order through the buttons on this site, which lead to the product page, where the final total shows before you pay.

Is Mighty K9 FDA approved?

No. Pet supplements are not FDA approved before sale; they are regulated as animal food or, if sold to treat disease, as drugs (FDA, Pet food rules). Mighty K9 makes no disease claim on its label.

Can I get a refund if my dog will not take it?

Yes, within 30 days: the sales page guarantee includes empty bottles, and its FAQ names refusal as a reason to return. Call +1 (302) 200-3480 with your order ID. You pay return shipping.

Is MightyK9 sold as drops, capsules, pills or gummies?

MightyK9, also written Mighty K9, comes as liquid drops: organic extra virgin olive oil with ESS60 and bacon flavor in a 60 mL dropper bottle. It is not a chew, and no capsule, pill or gummy version is listed on this site. You mix 2 mL into your dog's meal once a day.

Can I give Mighty K9 on an empty stomach?

The product page says to drizzle 2 mL over your dog's meal and mix it into food. Oil on its own is more likely to cause vomiting or loose stool. If your dog skips a meal, skip that day's serving and never double the next one.

Is Mighty K9 the same as MightyK9?

Yes. Mighty K9 and MightyK9 are two spellings of the same bacon-flavored C60 drops for dogs. The bottle, the label and the official checkout use the name Mighty K9 with a space. Both searches lead to the same 60 mL bottle with 30 servings.

Is Mighty K9 made in the USA?

Yes, the product page says Mighty K9 is made in Texas. Orders ship from the U.S. with tracking, and orders over $100 ship free in the U.S. The 30-day money-back guarantee covers empty bottles too.

Which dogs is Mighty K9 made for?

Mighty K9 is made for senior dogs and active adult dogs whose owners want a simple daily drop on food. Puppies under 6 months should see a vet first, and so should dogs on other medicines. The serving is the same 2 mL a day.

Is Mighty K9 sold on Amazon, Chewy or Walmart?

We could not verify a Mighty K9 listing from the brand on Amazon, Chewy or Walmart. The source we can confirm is the official checkout, reached through the buttons on this site. The 30-day money-back guarantee may not apply to third-party sellers.

How should I store a bottle of MightyK9?

Keep MightyK9 capped in a cool, dark place, as the product page says. It does not ask for a fridge. Light matters for C60 oil, so do not leave the bottle in the sun.

More answers on the full FAQ page.

Mighty K9 U.S. shop, a stocking partner

Ready to try Mighty K9 with your dog?

Mighty K9 comes as one, three or six bottles at $89.99 each. One 60 mL bottle gives 30 servings of 2 mL, so it covers the whole 30-day money-back window.

Pick a pack. 2 mL on one meal a day; one bottle covers the whole 30-day money-back window.

1 bottle$89.9930 days · Shipping at checkout3 bottles$269.9790 days · Free U.S. shipping6 bottles$539.94180 days · Free U.S. shipping
Order Mighty K9 nowCompare packs
  • Secure checkout
  • 30-day money-back window
  • Ships from the U.S. with tracking
An amber dropper bottle of Mighty K9 with a cream label and a spaniel on it

Mighty K9 drops$89.99 a bottle · free U.S. shipping over $100 · 30-day money-back

Order now