Indigo Dye. Natural Indigo Extract Powder to Use in Fermentation Vats. Indigofera Tinctoria. Perfect for Eco Prints and Shibori. Freshest Natural Dyes Always. 3.5 Oz Jars Natural Indigo Extract Powder from South India. 100% sustainably sourced, fair trade. Small lots bottled at source in India. Freshest dyes. Always. Quantity - 3.5 Oz or 100 grams packed carefully in food grade jars. Instructions included. Produced and shipped FRESH from India. Indigolys by AnneGeorges FabricTreasury.