US$ 22.32
copper peptide ghk-cu clinical study skin “Is GHK-Cu actually worth it?”
Description
Brain Pathol , 2009, 19(3): 392-398
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Users consistently report that the drive to eat diminishes substantially within the first few weeks of use

Martin M

Collagen comparison (thigh skin, 12 weeks): GHK-Cu improved collagen production in 70% of treated subjects, compared to 50% for vitamin C cream and 40% for retinoic acid (PMID 26236730)

PubMed, Liang, Shuang, et al
