Collagen C hydrolysate - Capsules Healthy Skin, Hair, Nails, and Joints. Collagen C Hydrolysate is a nutritional supplement that helps muscle development, the rejuvenation of the skin and hair, as well as flexibility and resistance of cartilage and bones. The active ingredient of collagen is a protein found naturally in almost all tissues of the body and decreases with aging. Collagen Hydrolyzed is the result of a process known as hydrolysis which minimizes the size of protein molecules. That facilitates an optimal absorption for metabolism.