
Immunity
A six-mushroom blend led by turkey tail for everyday immune support.
Our most concentrated blend: turkey tail, chaga, maitake, shiitake, reishi and cordyceps to support a healthy, balanced immune system year-round.
- Supports normal, balanced immune function
- Six fruiting-body mushrooms, rich in beta-glucans
- Great for active, traveling and senior pets
- Fine powder that blends into any meal
Buy any 3 jars and save 15% automatically. Prefer to order by phone? Call (781) 226-8208.
Immunity is the formula that started FurHealth. It brings together six of the most studied functional mushrooms — turkey tail, chaga, maitake, shiitake, reishi and cordyceps — in one fine, earthy powder.
These mushrooms are naturally rich in beta-glucans, a type of fiber that has been widely researched for its role in supporting normal immune function. We use fruiting bodies (the actual mushroom, not grain grown with mycelium) so you're paying for mushroom, not filler.
It's a good everyday choice for active dogs, pets who travel or board, households with several animals, and seniors. Because it's concentrated, a little goes a long way — one 100 g jar lasts a medium dog about a month.
Active ingredients per 1 scoop (1.5 g):
| Turkey tail mushroom (fruiting body) | 400 mg |
| Chaga mushroom (sclerotium) | 250 mg |
| Maitake mushroom (fruiting body) | 250 mg |
| Shiitake mushroom (fruiting body) | 250 mg |
| Reishi mushroom extract (fruiting body, 8:1) | 200 mg |
| Cordyceps militaris (fruiting body) | 150 mg |
Inactive ingredients: None. No fillers, flavors, colors or preservatives.
Sprinkle over your pet's food once a day and mix well. With dry food, add a splash of warm water so it clings.
| Pet weight | Serving |
|---|---|
| Under 10 lb (most cats) | ½ scoop daily |
| 10–25 lb | 1 scoop daily |
| 26–50 lb | 2 scoops daily |
| 51–90 lb | 3 scoops daily |
| Over 90 lb | 4 scoops daily |
Start with half a serving for the first week. Store in a cool, dry place with the lid closed. For animal use only. Keep out of reach of children. Try the dosage calculator.
Why is Immunity priced higher than the others?
It's our most mushroom-dense formula — the full scoop is mushroom, with nothing added to bulk it up — and chaga and maitake are costly to source well.
Can puppies and kittens take it?
We recommend waiting until 12 weeks of age and checking with your veterinarian first, since growing pets have specific nutritional needs.
Can I use Immunity alongside other FurHealth formulas?
Yes. Many customers pair it with Digestion or Skin & Coat. If you buy three or more jars, 15% bundle savings apply automatically.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. Consult your veterinarian before use if your pet is pregnant, nursing, on medication or has a health condition.

Made the way we'd want it for our own pets.
- Mushroom fruiting bodies — no grain-grown mycelium
- Every batch tested by an independent lab for heavy metals and microbes
- No artificial colors, flavors or fillers
- Packed by hand in small batches in Alliance, Ohio
Build a routine
Add any three jars to your cart and 15% bundle savings apply automatically.
Not sure where to start?
Answer four quick questions and we'll point you to the formula that fits your pet — plus 10% off your first order.


