ghk cu injection peptide “Is GHK-Cu actually worth it?” is genuinely one of the most common questions in my comments, so let me finally answer it properly., The short version: copper peptides have real research behind them, GHK-Cu Topical vs Injection |

Many larger health claims regarding longevity, organ regeneration and disease treatment are yet to undergo large scale human clinical trials

People with active cancer should consult their healthcare provider before using GHK-Cu because the peptide promotes angiogenesis, which could theoretically supply blood to tumors

Skrtic S, Wallenius V, Ekberg S, Brenzel A, Gressner AM, Jansson JO: Insulin-like growth factors stimulate expression of hepatocyte growth factor but not transforming growth factor beta1 in cultured hepatic stellate cells

The late establishment of pituitary GH control of the axis is strongly supported by animal data from GHR KO mice reviewed above, and by a new model of Laron syndrome (GHR defect) in pigs (52)

Impurities and mislabeling are real risks tied to sourcing rather than to the molecule itself, and they can affect both safety and any hoped-for activity