Microneedling, Mesotherapy or Injection Application: These methods allow the GHK-Cu to be released in a controlled and slow manner, allowing its effect to continue for a longer period of time
[6] Can Glutathione Injection be used during pregnancy
For individuals with Wilson's disease (a genetic disorder causing copper accumulation) or other copper metabolism disorders, theoretical caution is warranted, though even in these populations topical GHK-Cu is unlikely to pose significant risk given the minimal systemic absorption
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