ghk cu topical use GHK-Cu Scalp Solution GHK-Cu (Copper Peptide) Deep Dive:

doi: 10.1016/j.jplph.2014.03.002 21 GimenezE.SalinasM.Manzano-AgugliaroF

2016;3:Cd007435

Reconstitution Protocol for GHK-Cu Research Researchers who buy GHK-Cu peptide from PSPeptides receive it in lyophilized (freeze-dried) powder form for maximum stability during shipping and storage

The red line indicates the percentage inhibition of its target, ACE

This is a theoretical concern raised by the biology, not a demonstrated harm in humans for either compound, and it should be described as exactly that an unresolved question that the absence of long-term human data leaves open, not a proven risk and not a reason for false reassurance either