like the man said , i use it every week and for lst it is great as well it seems to reduce stress and i veged for 5 weeks and out of 5 white russian i got 5 females and out of 2 aurora indica i got 2 females and there was no growth stunt at all with using superthrive along with my canna nutes so YES i would recomend that shit to anyone here some pics one of wr and one of ai at 3 weeks lst,d. the postman