Indigo Naturalis belongs to a botanical family that includes Baphicacanthus cusia, Polygonum tinctorium (Persicaria tinctoria), Isatis indigotica and Indigofera tinctoria. One of its most common forms is in a dried powder cultivated from these fermented leaves. Indigo Naturalis has a long history of use in traditional medicine in China. Taken orally, it was primarily used to treat inflammation, infant epilepsy, high fever, chronic myelogenous, mumps, nose bleeding, chronic myelogenous leukemia, mouth inflammation, sore throat, gum inflammation, tonsillitis, boils on tongue or in mouth, coughing; Externally usedforeczema, insect orsnakebite, Psoriasis. Indigonaturalis was atraditional bluecolorant for dyeingthenankinsinmost ofChinese familythousands yearsbefore. Currentlyitisalso a best natural bluedye forjeans andcloth. OurIndigonaturalis is extracted from Baphicacanthuscusia. Though thereare most blue dyesaresynthetic, we always insiston thetraditional dyeing processes. IneveryAugust, we harvestthe leavesand dry the leaves in sun for a wholeyear use.