There is a fair amount of debate on SuperThrive. I read an outstanding and very well researched article that convinced me. Of course I can't put my hands on it now... But here are a few links:

Vitamin B1 Myth

This quotes the above:
DIY Northeast Organic Lawn Care: Does Superthrive work?

I'll dig around for more.
bigsby Reviewed by bigsby on . your nutes and experiences ? OK , my first indoor grow and I used Fox Farms- Big Grow- Big Bloom and Tiger Bloom- given to me by a retired grower- I am needing to purchase nutes and trying to decide which and why- This added- I have health issues and just went thru a flush- what a job for someone who can barely walk- I have read about this Natures Nector OMRI listed and product info says no flush is needed, that would be a great benefit for me- what nutes do you use, how long have you used, have you tried others- I know Rating: 5