Real salmon — not salmon meal — with glucosamine at 2,400 mg/kg and chondroitin sulfate at 1,200 mg/kg added directly to the formula. Those aren't incidental amounts — they're at therapeutic levels that actually move the needle on joint function when given consistently. 27% protein supports the muscle mass that takes mechanical load off joints, which matters as much for active dogs as it does for seniors. 81 calories per treat, so worth factoring into daily intake for smaller dogs. Tender enough to break in half for training use. Made in the USA. The right choice when joint support is a genuine priority rather than a marketing afterthought — the glucosamine and chondroitin levels here are the difference.