I am currently using it and the results have been impressive for me. I am growing some bagseed and prior to using it, I found the plants very undersized for their age. After 1 month, they were only about 3-4". Could be genetics, I know but after adding Superthrive, they began to take off. Within a 3 day span, they grew another 4"! The wife was out of town for a couple days and couldn't believe they were the same plants. I add about 1/4 tsp per gallon of water once a week. Hope this helps. Good luck!