Back in my college days, I was part of a careful study on "Superthrive" on various Annuals/Perennials on both Greenhouse settings and container grown stock outdoors. This wasn't some half-assed, highly speculative study conducted by "dude", it was tons of counting, measuring and data collection over a period of 6 mos. I personally measured chrysanthemums, dianthus and hemerocallis until I literally saw them in my dreams. The studies conclusion? Zero effect on plant yields from fruit or flower, vegetative growth, root development, stoloniferous growth, rhizatomous growth, radicle dev., cytokinins synthesizing etc. etc. Nada, nothing vs. the controls groups. Some may say " You didn't test it on cannabis right.?" No, it was not. But it would take a tremendous leap of faith (at least on my part) to assume there is something unique about cannabis that enables it to make use of this product when dozens of other plants quite clearly do not.
Can someone take this old dog behind the shed and finally put a bullet in it.? It is snake oil plain and simple. End of story..