NaturVets Yucca Powder is Pure. Yucca has also been proven to stimulate proper digestion. Can also be used as a companion product for joint supplements. Guaranteed Analysis: Analysis per 11cc scoop. Yucca - 5000 mg. Ingredients: Pure Yucca Schidigera Extract. Directions: Give one scoop twice daily for the first two weeks, then one half scoop twice daily thereafter.