Petthrive Soft Chews are nutritional supplements containing resveratrol and hyaluronic acid that supports healthy joint function and continued mobility in dogs. Resveratrol is a potent antioxidant that has been proven to reduce gene expression of inflammatory mediators. Hyaluronic acid is a natural component of cartilage and joint-lubricating synovial fluid and can be diminished in connective tissues during the natural aging process. Petthrive Soft Chews are for dogs weighing 60 to 90 pounds. Ingredients: Active Ingredients: Resveratrol ... 50 mg Hyaluronic Acid ... 3 mg Inactive Ingredients: Oats groats, palm oil, rice bran, rice flour, flax meal, dur-em 117 (mono- and diglycerides from vegatable oil), glycerin, chicken flavoring, molasses flavoring and ascorbic acid.