In the GHK-Cu complex, the copper ion coordinates with multiple binding sites: the nitrogen from the histidine imidazole side chain, the alpha-amino group of glycine, the deprotonated amide nitrogen of the glycine-histidine peptide bond, and oxygen from the lysine carboxyl group, forming a square-planar pyramid configuration
Mazzilli KM, McClain KM, Lipworth L et al (2020) Identification of 102 correlations between serum metabolites and habitual diet in a metabolomics study of the Prostate, Lung, Colorectal, and Ovarian Cancer Trial
Although both can be effective, its important to understand how they work to increase your testosterone to determine which treatment is best for you
Copper toxicity can lead to multi-organ failure, neurologic impairment, and even death (13) Differences in product quality and regulation Experts, including the FDA, have not approved GHK-Cu for many uses and people should only use investigational oral or injectable GHK-Cu under medical supervision