For subcutaneous injection protocols, the concern is indirect: iron-induced copper depletion over weeks could lower the copper available for endogenous GHK-Cu (the body produces approximately 200 g/L of GHK in plasma that declines with age) [1]
The Effects of Choline on Hepatic Lipid Metabolism, Mitochondrial Function and Antioxidative Status in Human Hepatic C3A Cells Exposed to Excessive Energy Substrates
If you think you might have a vitamin B deficiency, your doctor can test your blood levels and discuss whether shots might be beneficial.
Were ready to do the same for you
This dysfunction has been linked to a wide range of cardiovascular conditions, including heart failure, ischemia-reperfusion injury, arrhythmias, and cardiomyopathies
But they can get it from B12 supplements or fortified cereals and breads