Well I had to go all the way up to 4%BA and 12%BB. Even a 1/2 a cc hurts like a mofo! My ass still hurts after 3 days, thought I had a fucking abcess(L and R glute, and delts). This was nearly painless w/o BA or BB. The only problem was, I had to heat the vial up before each inj. Fuck, that would be better than this. I don't think I can even use it now. Ideas? I can't imagine anyone using any more than 5%. How much is needed as a bacteriostat? 1%?