The BPC-157 Regulatory Timeline Why the April change was often misunderstood When FDA removed BPC-157 from Category 2 in April, some online posts described the change as permission to compound again
DeSantis CE, Ma J, Gaudet MM, Newman LA, Miller KD, Goding Sauer A, et al
In fact, GSH is essential for some functions of the immune system, both innate and adaptive, including T-lymphocyte proliferation, 38 , 39 phagocytic activity of polymorphonuclear neutrophils (PMN), 40 and dendritic cell functions, 41 and is also important for the first step of adaptive immunity, consisting of the antigen presentation by antigen-presenting cells (APC)
You actually need B12 (along with B6 and B9) to make cysteine naturally in the body, so this may be why Mrykl has combined the two ingredients