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Evidence boundary No published human randomized trial has evaluated long-term injectable GHK-Cu for skin, hair, or wound endpoints

And the extended titration approach, maintaining each step for six weeks instead of four, dramatically improves tolerability for sensitive individuals

What you keep is what you built, not the inhibition

Collagen peptides and continued GHK-Cu use address this pillar, providing the raw materials and signaling necessary for sustained tissue quality

After reviewing the gene expression research extensively, I believe GHK-Cu represents one of the most underappreciated regenerative compounds available