The method and composition for tissue/cell repair facilitates healing of damaged tissues, promoting tissue and cell growth, protecting cells and tissues, and reducing scar tissue. The composition includes hydrolyzed collagen, preferably, high molecular weight hydrolyzed collagen. The hydrolyzed collagen may be combined with native collagen and/or at least one other therapeutic agent. For example, the therapeutic agent may be a polysulfated glycosaminoglycan, a glucosamine salt, or mixtures thereof.