Herbal Hills Punarnava Powder. Punarnava is botanically known as Boerhavia diffusa 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 Punarnava powder is made from the root of Boerhavia diffusa. Punarnava may promote kidney health. It may help maintain digestive health.