Your choice between BPC-157 and GHK-Cu depends primarily on your therapeutic goals and health priorities
It was first isolated in 1973 by biochemist Loren Pickart, who observed that plasma from younger donors caused older liver tissue to resume more youthful metabolic activity
These aren't necessarily absolute GHK-Cu contraindications for every single case, but they represent situations where the risk-benefit analysis becomes much more complicated
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If you use retinoids, introduce copper peptides even more gradually than standard guidelines suggest, and consider using them on alternate nights rather than together
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