- Promotes Stamina Through Increased Blood Flow* - Yohimbe Bark Extract Standardized for Yohimbine Alkaloids - Yohimbe Has Been Used Historically to Improve Sexual Function* How It Works: Twinlab Yohimbe Fuel is a quick-acting, concentrated and guaranteed potency yohimbe bark extract that has been standardized for yohimbine. Yohimbe has been used traditionally to improve sexual function.* Twinlab Yohimbe Fuel promotes stamina through increased blood flow.
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