I don't suggest that Superthrive doesn't work where it's meant to work. From what everyone says, not just you, it seems like it does. But more people suggest using it in the flowering stage isn't the best thing to do. Here's a quote from a horticultural researcher and what he believes. And also suggests that saying a person doesn't know what's in those little brown bottles is way off. For sure you understand how far humans have come in past years in their abilities to decipher exactly what anything on this planet is composed of. It's not like it's impossible to figure it out and the guy has some secret formula that can never be broken.

"Superthrive is simply Vitamin A,B,C,D,E and K with IBA and 1-Naa, two hormones that control elongation and can be used to promote rooting. The rest of the solution is water.

The misleading and almost fraudulent advertising of this company annoys me, nothing but promises for an average product, sure it works but the cost and all...

Superthrive I find is real handy for cloning, but dont overuse it as the 1-NAA becomes inhibitory if too much is used, in other words it stops the plants rooting. IBA also causes elongation in flowering, it leaves the buds with large gaps where there should be pungent female flowers, I dont use it ever during flowering for this reason.

If you want to give the plants a bit of a kick then simply go to a drugstore and buy some Vitamin B tablets, add small amounts once or twice a week. I give them around a 1/4 of a tablet occasionally, it gives them a nice kick and can help alleviate stress, its good for clones also I find."