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ghk cu hair growth study randomized controlled trial AHK-Cu Copper Peptide (2007) — Plain-Language Summary Copper peptide GHK-CU Hair Loss & Regrowth
Description
Supplier-published stability data is the appropriate reference

Since then, MET levels remain elevated in the neocortex, hippocampus, and sub-cortical limbic regions of mice forebrains during the second post-natal week, decreasing from P21 to adult age (Judson et al., 2009)
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doi: 10.1096/fj.201901192R

C-terminal is rich in alanine, valine, glycine, and other hydrophobic amino acids, taking up to 50% of the entire amino acid sequence
