The 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, and may include 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. The collagen may be derived from two or more different sources, and may be combined with hydrolyzed whey and/or elastin.