Dr. Bill’s Feline Immune Support | Boosts Cat Immunity and Health with Colostrum, Beta Glucan, Turkey Tail Mushroom, Zinc & Vitamin C | Powder Supplement for Cats of All Ages

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About This Supports a Strong, Resilient Immune System: Helps your cat fight off illness, recover faster, and stay healthy year-round with proactive daily immune support. Ideal for kittens, adults, and senior cats. Backed by Science, Powered by Nature: Features clinically studied ingredients like Beta Glucan and Turkey Tail Mushroom to strengthen immune cells, support gut health, health defense, even environmental and seasonal allergies. Protects at the Cellular Level: Nrf2 Antioxidant Activators, Vitamin C, and Zinc help neutralize harmful free radicals, reduce oxidative stress, and support healthy cellular function for long-term wellness. Promotes Faster Recovery & Response: Colostrum, Echinacea, and other immune-boosting compounds aid T-cell activity and reduce inflammation, helping your cat bounce back quicker from everyday immune challenges. Veterinarian-Formulated & Made in the USA: Developed by Dr. Bill Barnett, one of America’s top animal health experts with 40+ years of experience. Crafted in the USA with premium ingredients for purity, safety, and results you can trust. Show more