Collagen Complex from Dorian Yates Nutrition is a dietary supplement that contains collagen and is combined with other ingredients for a greater overall effect on joints, connective tissue, muscles and skin. Collagen is the most abundant protein in the body and has a fiber-like structure, making it perfect as a form of connective tissue, connecting bone to bone and bone to muscle. It is a major component of bones, skin, muscles, tendons, and cartilage. DY Nutrition Collagen Complex includes: Vitamin C for normal collagen formation in the body Vitamin B6 for energy production and inflammation reduction Hyaluronic acid to support natural levels in joints