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Special Offer: FREE SHIPPING* on our Dog Immunotherapy Pack.
Use coupon code IMMUNOSHIP at checkout & choose USPS Priority Mail.


Dog Immunotherapy Pack
K9 Critical Care + K9 TransFactor Plus 2.5
When your pet is critically ill, they need critical care.

Dog immunotherapy pack

Our Dog Immunotherapy Pack strengthens and balances your dog’s immune system so the body recognizes and destroys damaged cells.

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

• Respond more effectively to medical treatment;
• Have a shorter recovery time;
• Maintain a healthy appetite;
• Reduce the chance of a relapse.

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Full Satisfaction Guarantee*.

Your pet’s immune system is responsible for fighting off pathogens, environmental toxins — and even their own mutated cells. 

However, if your pet is critically ill, it’s likely that their immune system is overwhelmed. It cannot recognize and deal with the mutated cells quickly enough.

Pets that are facing illness or undergoing exhausting therapies will benefit from enhanced immune support from the most potent mushroom extracts available, plus transfer factors from colostrum to help the immune system identify the mutated cells.

Immune system support can help your pet to return to happy and healthy state, as well as:

• Increase energy so your dog can run and play again; 
• Reduce fatigue so your pet can feel his best; 
• Stimulate wellbeing for a high quality of life while coping with critical illness.

Enhanced immune support can increase quality of life for all pets, especially pets undergoing harsh medical therapies.


OR CALL 1-248-693-7525 

“I have given my dog the Critical Care supplements for two months and she is doing GREAT. The supplements really work. She's like a puppy, playing and running. Bright eyes and coat.”

-PupPup 6/7/11 

K9 Critical Care promotes a normal, healthy immune response to unexpected issues. 

4-medicinal-mushrooms-550.gifK9 Critical Care’s all-natural medicinal mushroom-based formula is designed to maximize your dog’s immune system defense. It promotes healthy immune response through the powerful polysaccharides found in medicinal mushrooms – used for immune system support for thousands of years by Traditional Chinese Medicine.

It is a blend of five of the most powerful mushroom extracts: Agaricus blazei, Coriolus versicolor, Reishi, Shiitake and Maitake.

There are 500 milligrams of the key ingredients per chewable wafer.

  • Pure mushroom extracts only.

  • Extracted using hot water only - not ethanol.

  • Grown on hard wood using natural methods passed down for thousands of years.

By maintaining your pet’s overall level of immunity, K9 Critical Care helps them to return to their natural, happy and energetic state.

K9 TransFactor Plus 2.5

img-48805x7ecopy.jpgTransfer factors are molecules used by the immune system to defend against harmful microbial threats.

In the critical first days of life for humans and animals, a mother passes on vital immune knowledge through the first meal: colostrum.

Colostrum is a nutrient-rich, critically important bioactive component packed with genetic information that helps the immune system differentiate between healthy and abnormal cells.

These molecules, produced for only a few days after birth, transfer immune experience to prepare the newborn’s immune system to function in the world.

K9 TransFactor Plus 2.5 contains premium, refined colostrum collected during the first 16 hours after birthing from USDA Grade-A dairy cows. Processed over low heat for maximum bioactivity, our colostrum contains a minimum of 18% immunoglobins.




*Risk-free offer! Money-back guarantee for first time orders. 
If you are not completely satisfied with the results you see within your first 30 days of this Dog Immunotherapy pack, simply return the remaining product or empty container to us for a full refund on the product price (not including shipping costs).


“I am so glad we found your product before our beautiful Australian Shepard died. The shopping was easy, the order came in three days and our dog got a miracle. Is now running the house and keeping the neighborhood watch in tact.” - Shirley P. 6/4/12


“I have given my dog the Critical Care supplements for two months and she is doing GREAT. The supplements really work. She's like a puppy, playing and running. Bright eyes and coat.” -PupPup 6/7/11


“I have had an excellent experience with K9 Critical Care. Tom did a great job of explaining how these products could benefit my dog and help her (I initially called when she was very sick and did not have a good prognosis). We have been extremely pleased with her progress and have been loyal users of both the Critical Care and Transfer Factor for at least 6 months now. For those of us with sick dogs, this is a wonderful product that works to supplement the care you are receiving from your Vet.” -Kelly S. 1/27/10


“Your products have kept our dog living since his bout with [******] and he is in his third year with surviving. Thank you.” - Natalie S. 3/18/16


“My dogs love the PetMix & suppliments. My vet was told me to take my Tazz home & enjoy what little time she had left due to [her] diagnosis.....that was over 3 yrs ago. Within a week on K9 Critical Care Pack & PetMix, she was up on her on. She returned to her playful self with a couple weeks. I was blessed by finding this site & Tazz is my miracle 4 legged child! As far as the vet, he's still amazed!” - Lisa L. 8/31/13


“I am extremely happy with K9 Critical Care. I started working with them in November of 2008 after my dog, Snookums, had surgery. The person who worked with me was so supportive and helpful, made good suggestions, and was very positive. I use the supplements (K9 Transfer Factor, K9 Bio-Silymarin, K9 ImmuniStat and K9 Omega) and the dog food mix for Snookums and have been very pleased with the results. I usually order by phone because I like to talk to the staff and seek their advice with whatever questions have arisen since the last order. They are patient and have made numerous helpful suggestions. The order always arrives promptly and well packed. I have moved my other dog, Viva, onto the dog food and am considering several supplements for her after consultation with the vets. My veterinarian has read the K9 Critical Care materials and has supported me on this effort. So far, my Snookums is doing very well and hopefully, with the care I'm giving her from K9 Critical Care, she will continue to do well. And, last but certainly not least, the dogs love those homemade dog treats! :>)” -Jeanette 1/28/10


Disclaimer: All testimonials are opinions of individual customers. Individual results may vary.

The information and statements contained on this on this website have not been evaluated by the Food and Drug Administration and are provided for informational purposes only. They are not meant to substitute for the advice provided by your veterinarian. Our products are not intended to diagnose, treat, cure or prevent any disease. Always seek the advice of a veterinarian when making health decisions for your pet.