NUTRASENSE Joint Health Double Strength Glucosamine Plus Chondroitin Complex for Pets & Dogs, 500/400mg, 90ct cap for Joint Health The only American sourced and made, non-shellfish, quality Glucosamine and Chondroitin in one product Ingredients sourced and manufactured in Iowa under strict US regulations Increases production of necessary joint lubricants & shock absorbing components in joints Promotes natural and safe anti-inflammatory activity, & supports collagen production Decreases enzymatic degradation of key joint components