does ghk-cu increase growth hormone or igf-1 hormone–insulin-like growth factor-1 axis. GH binds to a GHR, GHK-Cu Peptide: Benefits for Skin
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([PubMed][1]) 2

Researchers have looked into it in relation to strokes, transient ischemic attacks, and problems with the optic nerve

There are other sex-related differences in the handling of 2,2,4-trimethylpentane by rats

& Wajid, S
