Product Details + Collagen Stick 100% Natural Long lasting, Single Ingredient Dehydrated Treat Contains 95% collagen and premium quality beef for long-lasting chewing and real beef flavor. Rich source of amino acids for brain health, bone density and a healthy coat Low in fat. Easily Digestible No growth hormones, toxic chemicals, preservatives, artificial coloring, antibiotics, artificial ingredients, other additives. Supports our friends’ dental health by helping to break down tartar and plaque.