Alpha-yohimbine or Rauwolscine is a stereoisomer, or chemical relative, of Yohimbine. Yohimbine is a supplement derived from the bark of the Pausinaystalia Yohimbe tree found in western Africa and commonly used as a fat-burning supplement because of its potent alpha-adrenergic receptor antagonistic properties. Alpha-yohimbine, which may also be referred to as “rauwolscine,” is a diastereoisomer of yohimbine HCL. …