Copper Safety Concerns about copper toxicity from GHK-Cu are understandable but largely unwarranted at recommended doses
References Zheng Y, Ma AG, Zheng MC, Wang QZ, Liang H, Han XX, Schouten EG
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
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Studies show accelerated healing of transected tendons, improved functional recovery after muscle injuries, enhanced nerve regeneration following damage, and protective effects against various tissue insults