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!