bpc-157 timing before or after workout BPC-157: Tendon Repair and More Peptide BPC-157 - Does It

It will make you pee green

9 References Ng FM, Sun J, Sharma L, et al

B12 shots are generally safe when administered by healthcare professionals

Effects of N-acetylcysteine on brain glutamate levels and resting perfusion in schizophrenia

They exhibited increased intraocular pressure and mydriasis, degeneration of retinal ganglion cells, optic nerve head excavation and reduction in optic nerve thickness, generalized severe irregularity of retinal vessels, faint presentation of choroidal vessels, and severe optic nerve disc atrophy

Because B12 is an essential part of how your biochemistry works, it's not very common that it is actually B12 causing the side effects or reactions