They should not be used to self-prescribe, self-adjust dosing, or replace instructions from a licensed healthcare provider or pharmacy
Eur J Epidemiol 25:603605
It can also thin the blood, which can result in bruising and therefore is prohibited before any shot
Topical GHK-Cu has been studied for decades and has a well-established safety profile in the published literature
The GPLC used in this study was the USP grade nutritional product, GlycoCarn (Sigma Ta Health Sciences, S.p.A., Rome, Italy), a molecularly bonded form of glycine and propionyl-L-carnitine
However, taking coffee by mouth may be safer and more effective : blood caffeine levels were 3.5x higher after drinking coffee than after an enema in a trial on 11 people [35+, 36, 37, 38, 39, 40, 41, 42, 43, 44]