Copper peptides like GHK Cu work by sending signals to your skin to repair, regenerate, and produce collagen. It's not about instant results, it's about improving how your skin functions over time. Dr. What is GHK Cu? LIVV By age 30, your skin produces about 25% less collagen. By 40, that number can reach 40%. This decline affects more than just how your skin looks. It changes how it heals, Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms
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