yohimbe is a strong extract i used it a few times felt like i was on drugs lol pupils dialated flushed skin etc.. great for fat burning unsure on sexual benefit however i would choose something else for those purposes somethng like Radar recommended
^^That is exactly what happened to me. I've never done meth but had what I'd imagine was a similar reaction. Literally stopped sleeping and looked and felt really strung out. It was the strongest reaction I've ever had to any type of supplement and yet some feel great on it! Just one of those things I have a sensitivity to.