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Description
The copper peptide, GHK-Cu, which Holbrook takes for his skin and hair, is a common and regulated ingredient of face serums that promise to plump the skin

Cell lysates were cleared by centrifugation in a microcentrifuge at 13,000 rpm for 10 min at 4 C

doi: 10.1056/NEJMoa022170

Peptide risks As a reminder, synthetic peptides can have powerful activities in the body
