Copper is an essential mineral that helps the body maintain strong connective tissue. One of its most important roles is supporting enzymes that build and stabilize collagen. Collagen is the main structural protein inside skin, tendons, ligaments, and blood vessel walls. The enzymes that shape and cross link collagen fibers depend on copper to function. Without enough copper, these enzymes cannot complete the steps needed to form firm and durable collagen strands. As collagen fibers strengthen,