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Buljat, G

Research overwhelmingly describes the safety of GHK-Cu positively, such as when the authors of a 2018 review called it a safe, inexpensive, extensively studied compound.14 However, even though copper peptides have demonstrated an impressive safety track record in studies, there are (as with most skin care actives) a few safety risks to consider

It's attracted growing interest in research circles because of how directly it targets a specific enzymatic pathway - which makes it a useful tool for studying how NNMT activity influences downstream metabolic signalling at the cellular level

Both help to boost collagen and elastin production, as well as support tissue repair