Yerba Prima developed Psyllium Husks formulations to provide the highest cleansing activity of all fibers. Psyllium Husks formulations help to promote regularity lower cholesterol and are 4-8 times stronger than oat bran. Provides the highest cleansing activity of all fibers. Psyllium Husks formulations help to promote regularity lower cholesterol and are 4-8 times stronger than oat bran.. ..Other products from HerbsPro