zinc with ghk cu thymulin ghk-cu Copper peptides are everywhere — in serums, scalp treatments, and influencer recommendations. But What is GHK-Cu | Collagen

They dry the skin and can shift pH in ways that destabilize copper peptides

If you're stacking with TB-500, which has a longer plasma half-life of 1012 hours, administer TB-500 first to establish baseline tissue repair signaling, then follow with AHK-Cu 6090 minutes later to provide copper cofactor support during the active collagen synthesis phase

Niacinamide also works well with copper peptides

Cellular glutathione plays a key role in copper uptake mediated by human copper transporter 1

A 2025 Nature Communications paper mapped the binding to the disordered transactivation domain of p53, adding structural detail to how FOXO4-DRI engages its target