Bu fei wan,supports upper respiratory health,is made from Sulfur free herbs. It's GMP certified. Heavy metals tested. Contains no preservatives, sugar or coloring.

Ingredients: Astragalus membranaceus root-huang qi, Rehmannia glutinosa root-prep-shu di huang, Morus alba root bark-sang bai pi, Aster tataricus root-zi wan, Changium smyrnoiodes root-ming dang shen, Schisandra chinensis fruit-wu wei zi , Panax ginseng root-ren shen.