K9 Immunity™

K9Immunity, K9Immunity Plus and Apocaps are all natural supplements that have helped over a

Got a dog with cancer and want supplements that have helped over a million canine patients?

Reviewed by Ann Pruitt, InfoHorse.com · Updated April 2026

K9 Immunity™

K9Immunity, K9Immunity Plus and Apocaps by K9 Medicinals
K9Immunity, K9Immunity Plus and Apocaps are all natural supplements that have helped over a Million canine cancer patients.
What Sets K9Medicinals.com and Dogcancer.net Apart From Competitors?
We are a family business, who started selling these products after our own dog was diagnosed with cancer and given two weeks to live. K9Immunity extended our dog’s life by two years. We are passionate about helping others going through this trauma and want to keep healthy dogs well so no family has to go through what we did. All of our products are made in the U.S.A. and all of the ingredients are made in the U.S.A. as well. They are formulated in FDA certified laboratories to human grade standards. They are safe, organic, natural and have no known interactions with any other supplement or medication. They are safe for even pregnant or nursing canine mothers. Some other companies advertise their products are made in the U.S.A., but the ingredients come from other countries who have no safety standards. We have a full money back guarantee and a wonderful support system for our customers and their canine family members.

K9 Immunity™
K9 Immunity™ strengthens and balances your dog’s immune system so the body recognizes and destroys damaged cells. This improves their body’s ability to overcome illness and helps protect them against future illness.

Your dog’s immune system works in two ways:

Keeps existing cells healthy as they replicate
Rids damaged cells (like cancer cells) before they can multiply

Once your dog’s immune system strengthens, it may also help them:

Increase response to cancer treatment
Speed up recovery
Reduce side-effects from other cancer therapies
Prevent a serious future illness/relapse
Improve quality of life
Extend their time with you

K9 Immunity Plus™

K9 Immunity Plus™ is an intense immune-boosting daily supplement designed to provide maximum support for dogs with cancer. And it comes in a convenient, easy to administer form.

This formula includes all of the ingredients in our successful K9 Immunity™. Then we intensified it by adding:
Transfer Factors Increases the formula’s effectiveness and results. The immune-active polysaccharides in K9 Immunity™ work by bonding with your dog’s immune proteins. Transfer factors are needed for this bonding to occur.The added transfer factors increase the number of naturally-occurring bonds. In turn, this activates a greater number of immune cells for better results.

Omega 3 Essential Fatty Acids Omega 3 essential fatty acids are well-studied to help shrink tumors, lower inflammation and provide a host of other health benefits.

Making it more pleasant for your dog, K9 Immunity Plus™ comes in easy to chew wafers with natural liver and fish flavors dogs love.

Apocaps®

Apocaps®, the powerful nutraceutical supplement designed by Dr. Demian Dressler, DVM, author of The Dog Cancer Survival Guide is now available for dog lovers in stores, at vet offices, and online.

This is the same apoptogen formula supplement that Dr. Dressler developed for and uses with his canine patients at his veterinary hospital in Hawaii. Apocaps® is made in the USA with 100% human-grade, all natural ingredients. Apocaps is a giant leap in dog health innovation. Using pure, 100% human-grade, all-natural active ingredients, the patent-pending Apocaps CX formulation helps dogs by unlocking a natural biological process in the body called apoptosis.

What Symptoms Should I Be Aware of For Canine Cancer?

The 10 Early Warning Signs of Dog Cancer

1. Weight loss
2. Abnormal swellings that persist-be sure to check lymph node areas
3. Loss of appetite
4. Difficulty breathing, urination or defacation
5. Sores that don’t heal
6. Bleeding
7. Difficulty eating
8. Hesitation to exercise or tiredness
9. Persistent lameness or soreness
10. Offensive odor

Note: Don’t panic if your pet exhibits one or more of these signs. Quite often it is nothing to be concerned about, however cancer in canines can grow quite rapidly, so if it is cancer it is important to have it diagnosed as quickly as possible and begin a course of treatment if you choose.

What If My Dog Is Healthy, Can These Products Still Help?

YES!! Absolutely, they can help. Our goal is to help your healthy dog stay healthy and your sick dog heal and have a good quality of life and extended years with your family.

What Is Dogcancer.net?

Dogcancer.net is our sister site with additional information about canine cancer. You will find additional valuable information to help support you while you work to help your dog.

Order Your Cancer Wellness Products For Your Dog Today!

While we are not claiming a “cure” for cancer— as one does not exist yet, the products at K9Medicinals can help extend the comfort and often add months or years to your dog’s life. Early use of these products can have an even greater effect. Don’t wait! For more information about our product line and how it could benefit your canine, please call us today!

What exactly is the K9 Immunity™ family of supplements?

K9 Medicinals® makes three complementary products for dogs facing serious illness: K9 Immunity™, the daily mushroom-based immune supplement; K9 Immunity Plus™, an intensified daily wafer that folds K9 Immunity™, K9 Transfer Factors, and K9 Omega into one liver-and-fish-flavored chew; and Apocaps®, a nutraceutical "apoptogen" formula. K9 Immunity™ is positioned as the #1 Veterinarian Recommended Immune Supplement for Dogs in North America, and the products are most often bought together as a complementary combination for dogs with cancer.

K9 Immunity Plus large dog bag front label

Who makes these products, and why does the family story matter?
K9Medicinals.com and Dogcancer.net are run as a family business that started selling these products after their own dog was diagnosed with cancer and given only weeks to live. That origin shapes the company's promise: they are candid that they cannot guarantee a cure, only that the supplements are formulated to improve quality of life and extend a dog's time with the family. Customer questions go to a real person,, and the toll-free line (888) 366-3641.

K9 Immunity Plus large dog bag back label and feeding directions

What is inside the mushroom formula?

K9 Immunity™ is built on six biotech-lab-cultivated medicinal mushrooms that are USDA Certified Organic and Certified Kosher: Agaricus blazei, Cordyceps sinensis, Grifola frondosa (Maitake), Ganoderma lucidum (Reishi), Coriolus [Trametes] versicolor (Turkey Tail), and Lentinula edodes (Shiitake). The company describes the active fraction as over 200 highly purified, immune-active High Molecular Weight (HMW) Hetero-polysaccharides and Beta 1,3-1,6 triple right-hand-helix Beta Glucans. K9 Immunity Plus™ adds Transfer Factors and Omega 3 Essential Fatty Acids on top of that base.

K9 Immunity Plus small dog bag front label

How are K9 Immunity™ and Apocaps® designed to work together?

K9 Immunity™ is meant to strengthen and balance the dog's immune system so the body recognizes and destroys damaged cells, while the Transfer Factors in K9 Immunity Plus™ help the immune-active polysaccharides bond with the dog's immune proteins. Apocaps® takes a different angle: designed by Dr. Demian Dressler, DVM, co-author of The Dog Cancer Survival Guide, the patent-pending Apocaps CX formulation supports apoptosis, the body's natural programmed-cell-death process that clears out old or mutated cells. Its botanical apoptogens, luteolin, apigenin, silymarin, curcumin, gingerols, beta glucans, and l-glutamine, are processed with a bioavailability technology called Biovadex.

Which dogs is this for, and how is it dosed?
The line is aimed at dogs needing immune support, post-treatment recovery, or help maintaining quality of life through illness. K9 Immunity Plus™ wafers dose by weight: 1 wafer daily for small dogs under 30 lbs, 2 wafers for medium dogs 30 to 70 lbs, and 3 wafers for large dogs over 70 lbs. Wafers can be given whole as a treat or crumbled over food. The company notes individual results will vary.

What does it cost and how do you order?

Pricing on K9Medicinals.com includes K9 Immunity™ at $28.95 for a 90-count and $55.99 for a 2-pack, and K9 Immunity Plus™ wafers at $47.95 for medium dogs and $59.95 for large dogs. The Apocaps® and K9 Immunity Plus™ bundle runs $105.00 for medium dogs and $116.94 for large dogs. Orders over $60 ship free, returns are accepted within 30 days, and everything is made in the USA with 100% American ingredients and no imported Chinese ingredients.

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The Solution Section (FAQ)

What does K9 Immunity™ do for my dog?

K9 Immunity™ strengthens and balances your dog's immune system so the body recognizes and destroys damaged cells, improving its ability to overcome illness and helping protect against future illness. A strengthened immune system may also help increase response to cancer treatment, speed up recovery, reduce side-effects from other cancer therapies, prevent a serious future illness or relapse, improve quality of life, and extend their time with you.

How is K9 Immunity Plus™ different from K9 Immunity™?

K9 Immunity Plus™ is an intense immune-boosting daily supplement designed to provide maximum support for dogs with cancer. It includes all of the ingredients in K9 Immunity™ and then intensifies it by adding Transfer Factors, which increase the naturally-occurring bonds with your dog's immune proteins to activate more immune cells, and Omega 3 Essential Fatty Acids, which are well-studied to help shrink tumors and lower inflammation. It comes in easy-to-chew wafers with natural liver and fish flavors dogs love.

What is Apocaps® and who created it?

Apocaps® is a powerful nutraceutical supplement designed by Dr. Demian Dressler, DVM, author of The Dog Cancer Survival Guide. It is the same apoptogen formula Dr. Dressler developed for and uses with his canine patients at his veterinary hospital in Hawaii, made in the USA with 100% human-grade, all-natural active ingredients, and the patent-pending Apocaps CX formulation helps unlock a natural biological process in the body called apoptosis.

Are these products safe and where are they made?

All of the products are made in the U.S.A. and all of the ingredients are made in the U.S.A. as well, formulated in FDA certified laboratories to human grade standards. They are described as safe, organic and natural with no known interactions with any other supplement or medication, and safe for even pregnant or nursing canine mothers. The company also offers a full money-back guarantee.

What are the early warning signs of dog cancer I should watch for?

The description lists 10 early warning signs: weight loss; abnormal swellings that persist (check lymph node areas); loss of appetite; difficulty breathing, urination or defecation; sores that don't heal; bleeding; difficulty eating; hesitation to exercise or tiredness; persistent lameness or soreness; and offensive odor. The makers add that you shouldn't panic if your pet shows one or more signs, but because canine cancer can grow rapidly it is important to have it diagnosed as quickly as possible.

Can these products help if my dog is already healthy?

Yes. The company states they can absolutely help, with the goal of keeping a healthy dog healthy and helping a sick dog heal for a good quality of life and extended years with the family. While they do not claim a cure for cancer, the products can help extend comfort and often add months or years to a dog's life, with early use having an even greater effect.

What is K9 Immunity™?

K9 Immunity™ is an all-natural, mushroom-based daily immune supplement for dogs made by K9 Medicinals®. It is formulated to strengthen and balance a dog's immune system so the body can better recognize and destroy damaged cells. The company describes it as the #1 Veterinarian Recommended Immune Supplement for Dogs in North America.

What is the difference between K9 Immunity™ and K9 Immunity Plus™?

K9 Immunity™ is the base mushroom formula. K9 Immunity Plus™ is the most complete daily option, combining three formulas into one wafer: K9 Immunity™, K9 Transfer Factors, and K9 Omega. The Transfer Factors help the immune-active polysaccharides bond with immune proteins, and the Omega 3 essential fatty acids help lower inflammation, all in a liver-and-fish-flavored chew that costs less than buying each product separately.

Which mushrooms are in K9 Immunity™?

The formula contains six biotech-lab-cultivated, USDA Certified Organic and Certified Kosher medicinal mushrooms: Agaricus blazei, Cordyceps sinensis, Grifola frondosa (Maitake), Ganoderma lucidum (Reishi), Coriolus [Trametes] versicolor (Turkey Tail), and Lentinula edodes (Shiitake). Together they supply the immune-active beta glucans and polysaccharides at the heart of the product.

What are beta glucans and why do they matter?

Beta glucans are immune-active polysaccharides found in medicinal mushrooms. K9 Medicinals® describes its formula as containing over 200 highly purified, immune-active High Molecular Weight (HMW) Hetero-polysaccharides and Beta 1,3-1,6 triple right-hand-helix Beta Glucans. These compounds are the active fraction credited with supporting the dog's natural immune defenses.

What is Apocaps® and how is it different from K9 Immunity™?

Apocaps® is a nutraceutical apoptogen formula, not an immune booster. While K9 Immunity™ supports immune function, Apocaps® supports apoptosis, the body's natural programmed-cell-death process that clears out old or mutated cells. The two are often used together as a complementary combination for dogs with cancer.

Who designed Apocaps®?

Apocaps® was designed by Dr. Demian Dressler, DVM, co-author of the best-selling The Dog Cancer Survival Guide and a licensed veterinarian in Hawaii who graduated from the Cornell School of Veterinary Medicine. It is the same apoptogen formula he developed for and uses with his own canine patients.

What ingredients are in Apocaps®?

Apocaps® uses a blend of botanical apoptogens including luteolin, apigenin, silymarin (milk thistle), and curcumin from turmeric, along with gingerols, beta glucans, and l-glutamine. These plant-based nutraceuticals are processed with a patent-pending bioavailability technology called Biovadex so they can pass more effectively through the dog's digestive system.

What does apoptosis mean for a dog?

Apoptosis is the body's natural process of programmed cell death, which clears away old or abnormal cells. Apocaps® is designed to shore up this process when a dog's apoptosis levels are abnormally low. The patent-pending Apocaps CX formulation aims to support this natural biological function using food-based botanical ingredients.

How much K9 Immunity Plus™ should I give my dog?

K9 Immunity Plus™ wafers are dosed by weight: 1 wafer daily for small dogs under 30 lbs, 2 wafers for medium dogs 30 to 70 lbs, and 3 wafers for large dogs over 70 lbs. Wafers can be given whole as a treat or crumbled over food. Always confirm dosing with your veterinarian for your dog's specific situation.

How much do these products cost?

On K9Medicinals.com, K9 Immunity™ is $28.95 for a 90-count and $55.99 for a 2-pack. K9 Immunity Plus™ wafers are $47.95 for medium dogs and $59.95 for large dogs. The Apocaps® and K9 Immunity Plus™ bundle is $105.00 for medium dogs and $116.94 for large dogs, offered together at a savings.

Is shipping free?

Yes. K9 Medicinals® offers free shipping on orders over $60. This makes the combination bundles, which are above that threshold, eligible for free shipping when ordered directly from the company.

Are these products made in the USA?

Yes. K9 Immunity Plus™ is described as 100% made in America using only American ingredients, with no imported Chinese ingredients. Apocaps® is likewise made in the USA with human-grade, all-natural, food-based botanical ingredients.

How many dogs have used K9 Immunity™ products?

According to K9 Medicinals®, K9Immunity, K9Immunity Plus, and Apocaps have helped over a MILLION canine cancer patients. The company is transparent that they cannot guarantee a cure, only that the products are formulated to improve quality of life and extend a dog's time with their family. Individual results will vary.

What benefits does K9 Immunity™ claim to provide?

K9 Medicinals® states the supplement may help increase a dog's response to treatments, speed up recovery, reduce side effects from therapies, help prevent serious future illness or relapse, improve quality of life, and extend a dog's time with you. These are presented as possible benefits with the note that individual results will vary.

Can I give K9 Immunity™ and Apocaps® at the same time?

Yes. They are designed to be complementary and are commonly purchased together for dogs with cancer, with the company offering an Apocaps® and K9 Immunity Plus™ bundle. K9 Immunity™ supports the immune system while Apocaps® supports apoptosis, so they target different biological processes. As with any supplement during illness, discuss the combination with your veterinarian.

What is the return policy?

K9 Medicinals® accepts returns within 30 days from the purchase date for unopened or partially used products. Returns are sent to the company at 10235 Coyote Creek Drive, Reno, Nevada 89521.

How do I contact K9 Medicinals® with questions?

You can reach K9 Medicinals® by phone at (888) 366-3641 or by email at [email protected]. Because it is a family business started after their own dog's cancer diagnosis, customer questions are answered personally rather than through an anonymous call center.