BIXBI Organic Pet Superfood Immunity Daily Dog & Cat Supplement, 2.12-oz jar

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About This Item

Details

  • BIXBY Immunity uses a unique blend of organic mushrooms to support your pet’s immune system health.
  • Features a Quality Seal from the National Animal Supplement Council (NASC).
  • Proudly sourced and made in the USA.
  • The full-spectrum formula includes every part of the mushroom—mycelium, primordia, fruiting bodies, and extracellular compounds—for maximum benefits.
  • Can be combined with an additional BIXBI mushroom supplement to boost support (sold separately).

Ingredient Information

Instructions

Feast & Function

Some see mushrooms as mysterious and magical — we see them as nature’s most powerful source of holistic support. After years of family mushroom farming, we’ve learned that these incredible fungi can make a real difference in the health of pets. Our Certified Organic Mushroom Supplements are available in formulas for Joint, Digestion, Immunity, and Skin & Coat Support, giving your dog or cat the extra help they need to thrive.

The Fun in Functional

Support comes in many forms at BIXBI. From our signature Organic Mushroom Supplements to our single-source protein Functional Jerky, we’re always focused on what your dog needs — while never forgetting the flavor they love.

Our Mushrooms Work Overtime

We use the whole mushroom — from mycelium and primordia to fruiting bodies and beneficial compounds — for a full-spectrum formula that captures all the goodness these amazing fungi have to offer.

BIXBI Purity Promise

BIXBI products are thoughtfully sourced, minimally processed and extensively tested. They go beyond standard pet food protocols and test to ensure the absence of bacteria, heavy metals and other toxins. BIXBI doesn’t just ensure the bad is excluded—they also make sure that what goes into each product is exceptional. By conducting feeding trials, digestibility testing and additional studies, they strive to ensure their products are the healthiest and most beneficial for your pet.

About BIXBI

Founded in 2009 with our line of Organic Mushroom Supplements, we’ve grown to offer a full range of nutritious options for pets — including treats, dry, freeze-dried, and wet foods for dogs, as well as a complete line of cat food. While our catalog has expanded, our commitment remains the same: sourcing high-quality, whole-food ingredients from the USA and providing complete transparency about what goes into every product. That’s the BIXBI way.

Shop BIXBI

Questions & Answers

9 Customer Questions


Can I give my pet both the immunity & skin & coat? Or should it be one. If so which one is best? She has allergies & a few growths.

Answer by ChewySep 15, 2021
It is safe to give your pet two BIXBI supplements at once. By giving your pet two supplements, there are a variety of biologically active compounds that can be effective. We do not recommend combing more than 2 supplements.

Safe for cats?

Answer by ChewyMar 13, 2024
This supplement is safe for cats and dogs.

Why does the description list as a benefit "Potent antioxidants such as L-Ergothioneine, selenium and vitamins C and E ...."? I do not see these in the ingredient list??

Answer by ChewyApr 26, 2022
This supplement does not have any added vitamins, so the vitamins that exist are the ones that are naturally occurring in the organic mushrooms themselves.

Are the serving sizes per day?

Answer by ChewyJun 25, 2023
The recommended feeding amounts are on a daily basis.

4.6
Rated 4.6 out of 5 stars
91 Ratings

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Effectiveness

84% Positive

Form and Administration

81% Positive

Ingredients

89% Positive

Nutritional Value

96% Positive

71 Customer Reviews



Rated 5 out of 5 stars
By Debra on Oct 12, 2025

Used this product before

I did use this product for a dog I had years ago and I actually forgot about it. She had bad allergies (pink skin pit), and now that my current pit is having issues

I did use this product for a dog I had years ago and I actually forgot about it. She had bad allergies (pink skin pit), and now that my current pit is having issues with skin I purchased it again. I can say she and my son's pit will eat it on their food with no problems, which is a great thing.. For my dog, I switched her protein to rabbit ((Instinct Rabbit) and I stopped the Apoquel about 6 weeks ago and started this about about 8 days ago. I know the packaging on this is an issue due to some reviews of this brand, because of the baggy type cereal type packaging, but I don't mind it at all. Once I cut the bag I twist it and use a bread tie to close it. Right now my dog is sleeping like a baby and truly hope the protein switch and this additive will keep whatever it is gone for good.


Rated 5 out of 5 stars
By Jean on Oct 23, 2025

Bibi's boosts my cats' health!

I have a cat that periodically gets a condition called a rat ulcer. If I give her L-lysine AND Bixvi's organic food supplement she does not get it. When I stopped

I have a cat that periodically gets a condition called a rat ulcer. If I give her L-lysine AND Bixvi's organic food supplement she does not get it. When I stopped the Bixbi's she got a rat ulcer again. So she is now back on the supplement. I have outdoor kitties as well as indoor kitties so I like to give them all the Bixbi's and I feel it helps boost their health.


Rated 5 out of 5 stars
By Deborah on Jun 25, 2025

Working well.

Adopted a stray FIV+ cat that was in rough shape. With this added to good quality food, after his initial vet care, he is doing well and looks beautiful. Has had

Adopted a stray FIV+ cat that was in rough shape. With this added to good quality food, after his initial vet care, he is doing well and looks beautiful. Has had no more respiratory issues and his wounds have healed. His coat is full and soft. I'm so glad I tried this immunity support for him, and will continue to keep him on it.


Rated 1 out of 5 stars
By Kim on Jul 26, 2024

Not for our dogs

I tried to add water and also tried adding broth, but our English Springer Spaniel still would not eat his food if this was added. He is Not a picky eater so this

I tried to add water and also tried adding broth, but our English Springer Spaniel still would not eat his food if this was added. He is Not a picky eater so this was unexpected. Our English Mastiff had no problem eating his food with this mixed in, but it gave him very soft stools. We couldn’t give it to either of them long enough to see if it helped with immune systems, lumps, etc.


Rated 5 out of 5 stars
By AprilHugh4Homes on Jul 5, 2025

Delivery wwesome

Great service

Great service


Rated 5 out of 5 stars
By Paula on Feb 23, 2024

No More Ringworm Episodes

My wonderful dog Bodhi did not suffer ringworm the last two summers. While I cannot definitely claim the Bixby Organic Immunity Supplement provided this relief

My wonderful dog Bodhi did not suffer ringworm the last two summers. While I cannot definitely claim the Bixby Organic Immunity Supplement provided this relief (he had bad cases of ringworm as a puppy and his first summer after that), I hope that it has helped. Treating a dog is harder than adding a little preventative to his food.


Rated 5 out of 5 stars
By Mina on Apr 29, 2024

Shoe’ s mom

My baby is 15years old who had Cancer. After he takes the bixbi immunity, his condition has been improved impressively. Now he walks twice a day and good appetite

My baby is 15years old who had Cancer. After he takes the bixbi immunity, his condition has been improved impressively. Now he walks twice a day and good appetite . I highly recommand this for all dogs for their long healthy lives.


Rated 5 out of 5 stars
By Melissa on Mar 7, 2024

Works great!

I give this to my cats when they get watery eyes or the sniffles, and they always get better within a couple of days. I have not had any issues with any of them

I give this to my cats when they get watery eyes or the sniffles, and they always get better within a couple of days. I have not had any issues with any of them refusing their food with this mixed in. I’ve given it to my dogs without issue as well. I always keep this on hand.


Rated 5 out of 5 stars
By Janice on Mar 11, 2024

Bixbi Immunity Supplement

I’ve been reading about the many healthful properties that mushrooms have. This product contains the mushroom extract pets need, & they love the taste.

I’ve been reading about the many healthful properties that mushrooms have. This product contains the mushroom extract pets need, & they love the taste.


Rated 5 out of 5 stars
By Barbara on Apr 30, 2023

Satisfied

I think (Bixbi/Immunity) is a good product however I also give my fur babies Omega 3-6-9 as well. I sprinkle it over it over my fur babies food they like the taste

I think (Bixbi/Immunity) is a good product however I also give my fur babies Omega 3-6-9 as well. I sprinkle it over it over my fur babies food they like the taste as long as they are satisfied I am happy.