About This Trusted Formula: Formula relied on by thousands of veterinarians, rescues, and pet parents across the country for consistent immune support. 250 mg Per Chew: Each soft chew delivers 250 mg of high-quality ingredients to help support immune system function, promote antibody and collagen production, assist tissue repair, and maintain healthy antioxidant levels. Daily or As-Needed Support: This vet-formulated supplement can be used every day to help maintain respiratory and immune health, or during times of discomfort such as sneezing, coughing, congestion, runny nose, or watery, squinty eyes. Cats and Kittens of All Sizes: Suitable for kittens, adult cats, and senior cats of all breeds and sizes. Chicken Flavor Cats Love: Soft chews feature a natural chicken flavor and have been tested to ensure cats enjoy the taste, making daily supplementation easy and stress-free.