ghk-cu upregulates col1a1 – Peptide Minds The Human Tripeptide GHK-Cu in
Description
PRECISE CONTROL

1988 Feb;38(34):345353
Some people notice subtle shifts, perhaps slightly easier sleep onset or marginally improved morning alertness, but many notice nothing at all

doi: 10.1152/ajpgi.1990.259.4.G530

(2009) 297:H167384

Silvestrelli P
