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John R, Ahmad P, Gadgil K, Sharma S

This is the study that anchors most of the clinical confidence in topical GHK-Cu for skin aging

For the full protocol temperatures, timelines, and freeze-thaw specifics see the dedicated storage guide and our storage best practices reference, backed by peptide stability research in the peer-reviewed literature

Research indicates the peptide can extend the anagen (growth) phase while reducing the duration of the catagen (regression) phase , resulting in improved hair density and length

Zhang XW, Zhang XQ, Liang SL, Ye YR, Lin Y (2013) Key regulatory elements of a strong constitutive promoter, P- , from GCW14 Pichia pastoris