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Practitioners recommend bi-weekly treatments over approximately three months [16] , though individual treatment plans may vary based on specific health needs and goals

This suggests that excessive GHK-Cu (or other copper peptides) might theoretically push skin MMP-1 concentrations beyond levels supporting healthy collagen production into ranges associated with collagen fragmentation and breakdown seen in older skin with naturally elevated MMP-1

For longer storage, they can be kept in a fridge for about 1 year, or at -20C for long-term preservation

This means the same alcohol intake can produce higher BAC in older women compared to younger women, even at similar body weights