It depends on the active compound within You just mentioned a 5mg vial and a 5ml vial
Of particular interest is the action of BPC-157 in the context of cardiac arrhythmias
differences lie in the B12 form (methyl vs cyano) and exact strengths
If you feel tired all the time, even after a full nights rest, it may be due to low B12 levels
You should use this injection only under medical supervision and exactly as prescribed
And when it comes to health fitness, common confounding variables are all over the place, because we're human beings, we live messy lives, our stress levels change, our sleep quality changes, we have seasonal variations in our activity