Just trying to find a good, strong fat burner. I'm fairly stimulant tolerant so thats not an issue. Just looking for something that works! Only criteria that needs to be met is that it has no Yohimbe! Last fat burner I took had Yohimbe and it caused my kidney disease to act up after 2 weeks of taking it so I immediately stopped. Need an alternative. Currently downing lean 650 andsample packs in the mean time.