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GHK-Cu Peptide: Benefits, Research, and Guide [2026]
GHK-Cu (copper peptide GHK-Cu, or glycyl-L-histidyl-L-lysine copper complex) is a naturally occurring tripeptide with a strong affinity for copper ions. First identified in human plasma in 1973, it has become one of the most studied peptides in skin science and regenerative research. This guide covers the current state of GHK-Cu research - what it does, what the data shows, and what researchers should know.
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