Miracle Collagen contains bioactive collagen peptides with a specific molecular weight of 2kDa which have clinically shown to stimulate the skin cells to produce more collagen and strengthen the hair and nails. WHAT IT DOES Miracle Collagen is based on ten years of research and development, and has clinically shown to stimulate fibroblast cells within the skin-matrix to produce collagen, improve elastin and re-hydrate cells. Collagen peptides are absorbed through the gut into the bloodstream