It's an additive based a bunch on the B1 concept and you cannot do without SuperThrive. Well that's an exaggeration, but I think it does a whole lot to help induce nice big bunches of healthy roots, and healthy roots ain't too shabby for promoting healthy growth above ground. The guy that invented it seems like a kook, but the stuff is wonderful. It has like 100 substances in it or something. Supposedly used by the U.S. government and a bunch of other big shots. It creates this weird-looking growth on the edge of your bottle cap, and as everybody knows, that is by far the most important thing in weed farming.

1 drop per gallon for clones and other youngsters. 2 drops for young adults and 4 or 5 for adults. It will fry young ones literally to a crisp if you use too much. Buy the small size unless you have a huge operation going on.