Indigo Naturalis (Qing Dai), a remarkable natural compound, is meticulously extracted from the leaves and stems of the indigo plant. This potent botanical treasure has been a cornerstone of traditional Eastern medicine for over a millennium, revered for its powerful anti-inflammatory properties. A traditional herbal medicine has been reported to effectively treat for ulcerative colitis. Indigo Naturalis Online is the EC store specialing in natural Indigo Naturalis (Qing Dai). Worldwide shipping from Japan!