J Biol Chem (1990) 265(15):84708
If a GHK-Cu product costs more, the label should make the reason clear: format, concentration, supply length, testing, formula quality, or a more specialized use case
If you used sterile water (without a preservative), its lifespan is drastically shorterwe're talking 24 hours at most before the risk of bacterial growth becomes unacceptable
Those with diseases that affect the gut, such as Crohns disease or celiac disease, are also at risk ( Summary Those at greatest risk of vitamin B12 deficiency are vegans and vegetarians, who get little to no B12 from the diet
Now, lets start by understanding exactly what vitamin B12 is and why our bodies need it