copper peptide ghk-cu clinical trial skin wrinkles randomized Before and After: Results Copper Peptide (GHK-Cu) 2% Recovery
Description
PT-141 works on your brain to increase desirenot just blood flowmaking it effective for both men and women

"Endocrine control of somatotropic axis function in adulthood." Endocrine Reviews , 2005

Clin Cancer Res (2005) 11(18):65507

It is an auto-immune CNS disorder

Not sure whether this was due to improper storage - it needs to be kept cool and in the dark otherwise can degrade - or for some other reason
