“After a few weeks on K91, our 9 year old Golden is moving like a younger dog again. More energy, shinier coat and just happier overall.”
Michelle R.
Verified Buyer
Joints &
Mobility
Energy &
Muscle
Immune
Health
Skin &
Coat
Heart
Health
Healthy
Aging
Why K91?
More than a joint supplement.
A complete daily formula.
A complete daily formula.
K91 combines 10 research-backed ingredients to support your dog's whole-body health — because they deserve more good days.
SEE THE BENEFITS
The Hidden Health
Challenges in Dogs
As dogs age, important internal changes can happen that aren’t always visible — like cartilage thinning, reduced joint fluid, oxidative stress, weaker immune function and slower recovery. K91 helps support your dog from the inside out.
LEARN MORE →
Support what
they can't see.
they can't see.
Built on Ingredients Studied in Dogs.
Real research. Real potential. A healthier tomorrow.
10 WEEKS
Oral hyaluronic acid supported markers related to joint lubrication in canine research.
82%
Improved weight-bearing in dogs receiving omega-3 support in a veterinary study.
~70 DAYS
Glucosamine + chondroitin showed mobility improvements in canine research.
Based on peer-reviewed research involving individual K91 ingredients. K91 itself has not been evaluated in these studies. Individual results may vary.
10 Functional Ingredients. Real Benefits.
VIEW FULL INGREDIENT DETAILS →
Glucosamine HCl
Supports cartilage and joint function.
Chondroitin Sulfate
Helps maintain healthy joints.
MSM
Supports joint comfort and mobility.
Hyaluronic Acid
Supports joint lubrication.
Fish Oil (EPA/DHA)
Supports joints, heart, skin and coat.
Beta Glucans
Supports immune system health.
Turmeric
Supports a healthy inflammatory response.
L-Carnitine
Supports energy and muscle metabolism.
Zinc
Supports immune health and skin & coat.
Vitamin E
Supports immune function and cellular health.
What to Expect
with Consistent Use
Every dog is different, but many pet parents begin to notice positive changes within weeks as key nutrients build into their dog’s daily routine.
REAL CUSTOMER RESULTS →0–2 WEEKS
- Easier movement
- More energy
- Improved appetite
2–6 WEEKS
- Increased activity
- Shinier coat
- Better recovery
6–12 WEEKS
- Greater mobility
- Longer play sessions
- Overall vitality
K91 vs. Multiple Supplements
Get complete daily support in one easy formula — without the hassle or extra cost of multiple products.
SEE THE DIFFERENCE →K91
ALL-IN-ONE FORMULA
- ✓ Joints & Mobility
- ✓ Energy & Muscle
- ✓ Immune Health
- ✓ Skin & Coat
- ✓ Heart Health
- ✓ Healthy Aging
Multiple Supplements
- × Joint Supplement
- × Performance Supplement
- × Immune Supplement
- × Skin & Coat Supplement
- × Heart Supplement
- × Aging/Longevity Supplement
Real Dogs. Real Results.
“We’ve tried everything and this is the only supplement that’s made a noticeable difference. Highly recommend!”
Jason T.
Verified Buyer
“Our dog’s mobility, energy and coat have all improved. K91 is now a staple in our home.”
Sarah L.
Verified Buyer
A complete and balanced diet provides the foundation of your dog’s nutrition,
but many pet parents choose a daily multivitamin to provide additional support
for joints, mobility, skin, coat, immune health, energy and healthy aging.
Yes. K91 is designed for consistent daily use and can be added directly to
your dog’s regular food according to the recommended serving instructions.
Yes. K91 includes glucosamine HCl and chondroitin sulfate along with MSM,
hyaluronic acid and other functional ingredients that support joint health
and mobility.
Yes. K91 is a liquid formula designed to be mixed into or poured over your
dog’s regular food, making daily supplementation simple and convenient.
K91 is designed to support areas that can become increasingly important as
dogs age, including mobility, joint health, immune function, energy, skin and
coat health, and overall wellness.
Support the years ahead.
One daily formula for a healthier, happier tomorrow.
Veterinarian Formulated
Made In USA
Easy Daily Liquid Formula
Trusted By Pet Parents