ghk-cu third party tested Order Research Grade GHK-CU for Sale | Tripeptide-1
Description
Topical copper peptide serums containing GHK-Cu work through similar mechanisms but without the 5-ALA energy boost

The use of sdAbs such as [ 68 Ga]Ga-NOTA-Nb1053 allows same-day imaging one hour after injection with high target-to-background ratios, avoiding concerns associated with non-specific bone accumulation seen with 89 Zr-labeled mAb immunoPET techniques

10.1038/nrm1261 [DOI] [PubMed] [Google Scholar] Birchmeier W., Brinkmann V., Niemann C., Meiners S., DiCesare S., Naundorf H., et al

It is not caused by the drug directly

But with the extra receptors in the neuron connections (synaptic cleft), over-firing occurs
