The complex absorption process required for this vitamin makes it vulnerable to disruption at multiple points along the gastrointestinal tract, particularly in conditions affecting intrinsic factor production or ileal uptake
B12 can also be constructed artificially, so you may also find it added to many food products
Stopping a protocol at 2 weeks because results aren't obvious means terminating during the proliferative phase before the remodeling that produces functional improvement has occurred
The body may absorb cyanocobalamin better, while methylcobalamin has a higher retention rate
J Physiol Pharmacol 60(Suppl 7):115122 Tkalcevic VI, Cuzic S, Brajsa K, Mildner B, Bokulic A, Situm K, Perovic D, Glojnaric I, Parnham MJ (2007) Enhancement by PL 14736 of granulation and collagen organization in healing wounds and the potential role of egr-1 expression
Can you stack GHK-Cu with BPC-157 and TB-500