GHK-Cu is a small, naturally occurring copper peptide (a tripeptide, meaning three amino acids: glycine, histidine, lysine) bound to a single copper ion
Tendon and bone models : Research has looked at fibroblast behaviour and the expression of repair-associated growth factors in tendon and bone studies, where the peptide has been associated with improved cell migration and tissue organisation in vitro
Its also thought that some other ingredients that are in the B12 injections could possibly cause the reaction, instead the the B12 itself but this will vary on different brands and formulations
These could be breakfast cereals and breads, nutritional yeast, or milk made from plants
Injections can help combat fatigue and improve overall energy levels
FDA reviews regulatory status of peptides. U.S