Providers usually counsel patients that results (if any) may take several weeks or months, and that GHK-Cu is a supplement to (not a substitute for) proven treatments and healthy lifestyle choices
The two most widely used vitamin B12 shots contain either man-made Cyanocobalamin or naturally occurring Methylcobalamin and do not require a prescription
Gapp J, Tariq A, Chandra S
doi: 10.1055/s-0042-109065 Summary Keywords diabetes mellitus type 2, cardiovascular disease, cardiovascular risk, diabetic kidney disease, sodium-glucose cotransporter-2 inhibitor, glucagon-like peptide-1 receptor agonist, aldosterone, renin Citation Puglisi S, Rossini A, Poli R, Dughera F, Pia A, Terzolo M and Reimondo G (2021) Effects of SGLT2 Inhibitors and GLP-1 Receptor Agonists on Renin-Angiotensin-Aldosterone System