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Foundation formula

Advanced Natural-Defense FormulaImmunity

Help your dog bounce back and stay strong with clean, science-backed immune support.

Each drop of this natural immune supplement for dogs is packed with human-grade, high-absorption, clinically researched ingredients like functional mushrooms that work in harmony to strengthen defenses, support seasonal allergy response, and keep your dog thriving:

Benefits:

  • Supports healthy immune system function and resilience
  • Helps protect against oxidative stress with powerful antioxidants
  • Promotes vibrant energy and everyday vitality
  • Helps maintain a healthy inflammatory response
4.8· 49 total reviews
Save $5.97 USD

$33.83 USD

Delivery every 30 days. Skip, pause or cancel anytime.

  • Free shipping on every order
  • 90-day guarantee, you'll love it
  • 7 to 9 kcal per serving

Daily routine

Under 45 lb

3 pumps daily

about 40 days

Cost per day

$1.00 / day

$0.85 with subscription

45 to 90 lb

4 pumps daily

about 30 days

Cost per day

$1.33 / day

$1.13 with subscription

Over 90 lb

5 pumps daily

about 24 days

Cost per day

$1.66 / day

$1.41 with subscription

Pump over food once a day and mix. Shake before use, refrigerate after opening.

Actives & full ingredients

Every active in this formula, with the amount per pump, is listed in the ingredients section on this page.

Safety, cautions & interactions

For dogs only. Not for pregnant or nursing dogs. Check with your vet before use if your dog takes anti-inflammatories or blood thinners, or is scheduled for surgery.

Testing & batch documentation

Every batch is third-party tested for heavy metals and microbials. Certificates are published by batch code. The code is printed on your bottle.

Shipping & returns

Free shipping on all US orders, with no minimum. Faster delivery is available at checkout for a fee. We currently ship within the USA only.

Shipping policy · Refund policy

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IMMUNITY - Advanced Natural Defense

$39.80 USD
$33.83 USD with subscription
  • Third-party tested Every batch, for heavy metals and microbials
  • No fillers or microplastics Nothing in the bottle that is not doing a job
  • 7-9 kcal per serving Sits on top of a normal diet, every day
  • Cold processed Actives are never heat-treated like chews
  • 90-day guarantee Not into it? We refund you

What is inside

Each active, and what the research actually looked at.

We name what was studied, the species it was studied in, and the dose. Where the work is not in dogs, we say so.

Open the ingredient library
ActivePer serving
Organic Turkey Tail Mushroom Extract
Why it is in here

The largest mushroom inclusion in this formula, at three times either of the others. Turkey tail beta-glucans are among the best researched natural immune polysaccharides there are, and they are a fermentable fibre rather than a nutrient the dog absorbs.

33.3 mg
Organic Agaricus blazei Mushroom Extract
Why it is in here

An organic liquid extract with no grain substrate, which is worth saying out loud because much of this category is grown on grain and sold by the weight of what it was grown on.

11.1 mg
Organic Lion's Mane Mushroom Extract
Why it is in here

The one ingredient in this formula with a published study in dogs. Eighteen senior dogs over sixteen weeks showed a measurable shift in gut bacteria, and it is worth saying honestly that the dose used was far higher than a daily topper.

11.1 mg
Vitamin C (Ascorbic Acid)
Why it is in here

Present as a formulation antioxidant and a co-factor rather than as a nutrient the dog needs from us. Dogs make their own vitamin C in the liver, and we would rather say that than imply otherwise.

3.3 mg

What this does not say. Ingredient research is not evidence about this finished formula, and none of it establishes treatment of any diagnosed condition. The absorption figure we publish comes from published microencapsulation research, not from a study on a finished AlchemyPet formula.

How to use it

A few pumps on their food. That is the whole routine.

No pill pockets. No cheese. No spit-out.

  1. Start slow

    One pump on day one, then build up to the dose for their weight over a few days.

  2. Pump and mix

    Straight onto their food and stir it through. Shake the bottle first.

  3. Every day after

    Give it a full 30 days. Routines beat single doses.

Pairs well with

All formulas

Safety

For dogs only. Not for pregnant or nursing dogs. Check with your vet before use if your dog takes anti-inflammatories or blood thinners, or is scheduled for surgery.

Testing

Every batch is third-party tested for heavy metals and microbials. Certificates are published by batch code. The code is printed on your bottle.

Overall rating: 4.836735 / 5 from 49 reviews.

AI Generated Review Summary

Summary topics

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Review highlights

Reviews

Unfortunately, due to how close

"Unfortunately, due to how close we received the collab was to the collab due date, we were only able to add the supplement to our pet's diet for a few days. In those couple of days, our pet experienced irregular bowel movements. Due to the tight timeframe, we were unable determine if the supplement was the cause, or just coincidental with some external factor."

— Corona T. (3/5)

It's hard to know whether

"It's hard to know whether the product is REALLY working and REALLY has those benefits - they are big claimed benefits that we were supposed to write in the caption and that made me feel kind of uncomfortable without like a scientific report."

— Sandra G. (4/5)

We were very pleased with

"We were very pleased with this product. The dogs had 0 issues chowing down their breakfast when topped with the Immunity Booster. They also had no issues with GI upset. The factors this product covers is amazing."

— Samantha R. (5/5)

I'm not sure how well

"I'm not sure how well it'll work as that will take time but my dog was ready to try it as soon as I opened it. The holder is nice and it was easy to use on a “big” dog."

— Krushna P. (4/5)

The packaging is great, the

"The packaging is great, the product description is very trustworthy, the company is very likable."

— Eskarle L. (5/5)

My dog is a very

"My dog is a very picky eater. She loves this booster. She will even lick it straight from the dropper. The health benefits are just what I was looking for."

— Kimberly W. (5/5)

My dogs really seem to

"My dogs really seem to enjoy this. The one eats it right from the bottle. The other love it mixed with food! I had vitamins they would not even touch before so I'm so happy they love this!"

— Annabel M. (5/5)

Love the products great quality!

"Love the products great quality!"

— Sandra P. (5/5)

It made him finish his

"It made him finish his food when he normally doesn't so he loved the taste"

— Jessica K. (5/5)

The dogs love it, it's

"The dogs love it, it's easy to add to their food, and there's a generous amount in each bottle."

— Tiffany N. (5/5)

Q&A