yes, but you cannot make judgments about a supplement when the effects of another drug is occurring.
You would have to take b-12, or whatever, on its own, many months after the other drug no longer as any effect.
That is what is wrong with most claims made by drug users; they take so many they would not have a clue what is working and what does not.
BTW, if you are going to post our PMs, it was you who wrote to me. I just said keep me posted as I am eager to know what effects you will get from your test after you denied any use of test for most of 2013. I also said I would prefer you lifted in PA, clean.