Natrol Yohimbe is an extract derived from a West African evergreen bark. It has been used for centuries to support male health. Natrol delivers the benefits of this centuries old herb in an easy-to-use dietary supplement that can help you enjoy a more youthful existence. Support male potency and power with a whole herb powder that has been used for years to support vitality in men.Size/Form: 500mg 135 Capsules Directions: Take 1 capsule, up to three times daily, with a meal. Do not exceed recommended dose. • Yohime (Pausinystalia johimbe) (bark) 500 mg.Other Ingredients: Gelatin, Water, Magnesium Stearate.