the added ba , for more possibilities of splitting use @ 2x ed or once aday for those of us that cant see to well to measure real small dose as this., also the added ba is such a small amount compared to the igf/bac water in a dose the im shots are painless once in a while there is a slight ache in the muscle a day later but it just feels like you worked out that muscle and to me that feels good . and pumped, today i shot in my abs after working them it felt great.