my buddy was told by the local hydroponic store owner its great for vegging because it'll make the plants metabolism work harder, it'll reproduce cells faster and will be able to photosynthesis more. Its Alot of B vitamins and plant hormones BUT not to use it during flowering. He said when the plants flowering thats what you want it to concentrate on doing, flowering. He said the super thrive will make the plant do things it doesn't necessarily need to be doing. ex. repairing nitrogen for growth
I didn't really understand this but hes NEVER steered him wrong and he sold this to him over a more expensive product.