Only Natural Pet Immune Strengthener Capsules Dog & Cat Supplement, 90 count

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Help keep your pal in tip-top shape with the Only Natural Pet Immune Strengthener Capsules Dog & Cat Supplement. Veterinarian-formulated to help support a healthy immune system in cats and dogs, these capsules are packed with medicinal mushrooms, vitamins, herbs and antioxidants to help maintain immunity and fight free radicals—the main cause of wear and tear to cells. That’s why they’re great for all pets as an everyday supplement to support overall wellness, but also for those recovering from illness or injury, and even for very active pets that could use the extra support. To easily give to your pal, simply insert the pill in a pill wrap or open it and mix in the natural turkey-flavored powder with his food.

Key Benefits
  • Veterinarian-formulated synergistic blend of medicinal mushrooms and other nutrients to help support immune health.
  • Works for cats and dogs alike, and is easy to use by inserting in a pill wrap or breaking up the capsule and mixing with food.
  • Contains mushrooms like Reishi and Shiitake, plus herbs like cat’s claw and astralagus—known as adaptogens—plus vitamin A, E, selenium and more.
  • Natural turkey flavor means your pal will actually like the taste and is great for all pets, especially those recovering from injury, disease or surgery.
  • Made in the USA in an FDA-approved facility with carefully selected human-grade ingredients.

For animal use only. Keep out of reach of children and animals. In case of accidental overdose contact a health professional immediately. Safe use in pregnant animals or animals intended for breeding has not been proven. Use with caution on animals with renal disorders. If animal's condition worsens or does not improve, stop product administration and consult your veterinarian. An examination from a veterinarian is recommended prior to using this product.

See all items by Only Natural Pet

  • Item Number
  • Breed Size
    Small Breeds, Medium Breeds, Large Breeds
  • Food Form
  • Lifestage
    Adult, Senior, Puppy
  • Made in
    United States
  • Product Form
Nutritional Info

Active Ingredients: Vitamin C (as Ascorbic Acid) 50 mg, Reishi (fruit) Extract 4:1 31.25 mg, Shiitake (fruit) Extract 4:1 31.25 mg, Cat's Claw (bark) Extract 4:1 25 mg, Maitake (fruit) Extract 4:1 25 mg, Astagalus (root) Extract 4:1 12.5 mg, Decaf Green Tea (leaf) Extract 12.5 mg, N-Acetyl-L-Cysteine 5 mg, Coenzyme Q10 2 mg, Selenium (from Selenomethionine) 0.02 mg, Vitamin A (from Vitamin A Acetate) 1000 IU, Vitamin E (from d-alpha Tocopheryl Acid Succinate) 35 IU.

Inactive Ingredients: Gelatin (capsule), Magnesium Stearate, Microcrystalline Cellulose, Natural Turkey Flavor.

Feeding Instructions
Weight of PetDaily Feeding
Under 25 lbs1/2 capsule twice daily
26 - 50 lbs1 capsule twice daily
51 - 100 lbs2 capsules twice daily
Over 100 lbs3 capsules twice daily

Wrap capsule in a treat or break open and mix with moist food or liquid.


Customer Reviews

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  • 5 out of 5 stars

    Kennel cough gone!

    By on

    My 8 month old pup picked up kennel cough for the first time. I wanted to try & treat him naturally before going the vet/antibiotics route. Gave him 2 pills a day (one in am, one in evening) along with 1 tsp of honey 3 times a day & within 5 days his cough was completely gone!!! I read it can take up to 3 weeks sometimes but he’s completely cough free & was back to his normal self within a few days. I truly feel this product assisted in his swift recovery due to its high antioxidant ingredients! I opened the capsule & mixed with his food along with 1 tbsp warm water & an egg. I will always keep a bottle of this on hand to keep his immune system strong!

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  • 5 out of 5 stars


    By on

    I bought this because my rescue dog has mange. Her hair started growing back while on the product, we thought she was on her way to recovery, all her hair grew back in after 1 bottle/6 weeks. But two weeks without this, she started losing hair in patches again! Ordered more, I really believe this works great!!!

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