Si wu tang wan,is made from Sulfur free herbs. It's GMP certified. Heavy metals tested. Contains no preservatives, sugar or coloring.

Ingredients: Rehmannia glutinosa root-prep(shu di huang), Angelica sinensis root(dang gui), Paeonia lactiflora root(bai shao), Ligusticum chuanxiong rhizome(chuan xiong).

Directions:8-12 pills/time, 2-3 times/day.