NATURAL JOINT SUPPORT: Healthy joints are cushioned by cartilage for smooth, pain-free movement. Beef collagen provides collagen peptides and amino acids that are essential for cartilage matrix formation. BONE SUPPORT: Give your dog collagen with growth factors and amino acids to support the bone matrix for stable, robust bones. MORE COMPLETE: Beef collagen is rich in Type I and Type II collagen and chondroitin, which are the main structural components of cartilage, tendons, ligaments and bones, while marine collagen mainly contains only Type I collagen. QUALITY & SUSTAINABILITY: We source our pet collagen from pastured New Zealand cows for a highly bioavailable collagen that’s clean and sustainable. MADE IN THE USA: Our beef collagen is made in small batches in our GMP and NASC compliant plant and third party tested for purity and quality. SATISFACTION GUARANTEED: If you're not thrilled with the premium quality of Four Leaf Rover Seven 'Shrooms, we'll refund your purchase. No hassles. No questions. Guaranteed. Collagen for dogs is super awesome