GHK-Cu (Copper) Peptide GHK-Cu is a naturally occurring copper-binding peptide composed of 3 amino acids, i.e. glycyl-L-histidyl-L-lysine.(1) -Cu refers to the
GHRP-2 Peptide GHRP-2 is a synthetic peptide made of five amino acids (pentapeptide) analogous to the endogenous neurotransmitter met-enkephalin.(1) Yet, the
Gonadorelin Peptide Gonadorelin is the synthetic version of the naturally occurring gonadotropin hormone-releasing hormone (GnRH). GnRH is considered to be
