Herbal Hills Senna powder. Senna is botanically known as Cassia angustifolia which is synergistically processed with highly advanced technology. Our Company is India's largest online selling brand in pure herbal powders. Our’s is ISO 22000-2005 Certified Company. Our Research team has identified few herbs mentioned in traditional texts with their monograph & healing properties & introduced them as Herbal Supplements & powder. Our Senna powder is made from leaves of Cassia angustifolia. Senna supports regularity and relief from occasional constipation. It helps smoothen the muscles as the digested food moves through the intestine thus working as a laxative.