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HUBERMAN: And in addition to wanting to teach you about some of the biology of these peptides and how they work and what they're designed to do, as well as some of their potential therapeutic benefits under the right conditions, again, working with a really good board-certified physician and making sure that the sourcing is really clean

Reported Benefits Skin remodeling (topical/in-vitro): GHK-Cu is reported to boost collagen and elastin and improve skin firmness in topical and cell studies [3] [6]

The pairing is biologically reasoned and widely used in research settings, but it has not been tested as a combination in a controlled human study

This is another reason to use reconstituted peptides within the 28-day window, not just for sterility but for dosing consistency