The copper ion is integral to GHK-Cu's biological activity, serving as a cofactor in enzymatic reactions involved in collagen crosslinking and antioxidant defence mechanisms
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Timing: Dosing is most often administered in the evening, shortly before bedtime, to align with its hypothesized promotion of SWS and natural circadian rhythms
BPC has been found to be safe in clinical trials conducted in several countries, with no toxicity reported
Non-invasive Alternative: Nasal sprays provide a less invasive option than injections, potentially improving adherence in long-term research protocols
10.1016/j.devcel.2019.10.007 13 BurkR