Personally had tried btab bsafe hydra hulk or whatever, initially got into this bcuz they claim this is thc and i do believe it at the very beginning. It does some how, tolerance build up slowly, unlike weed, i was hooked, hardly focus, emotionally brittle, emptying bank acc, get scammed, crave. I have seen my friend vape this to the point he dont even knw he shit his pants, a person who get seriously hooked can easily empty 10ml bottle within half a day. Until now, we all still have no idea what the hell is this thing. Please stay off from this. I have been clean for 7 months, still occasionally wanting to give in, god bless me that im still clean and nvr get into it again. Please, stay off from all the synthetic, get the real natural weed if u really need.