GHK-Cu (Copper Peptide) GHK-Cu is perhaps the most established peptide in cosmetic skincare
It was derived from angiotensin IV research in the lab of Joseph Harding
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[DOI] [PMC free article] [PubMed] [Google Scholar] 104.Mirkovic I., Kralj T., Lozic M., Stambolija V., Kovacevic J., Vrdoljak L., Zlatar M., Milanovic K., Drmic D., Predovic J., et al
[6] [7] In individuals already engaging in intense physical training, this may compound cardiovascular risk
GH peptides improve cognition indirectly through better sleep