Indigo dye has two kinds: natural and synthetic. The synthetic Indigo dye is widely used in clothes, bags, food and makeups in modern society.
Indigo dye can be used for cotton, wool, silk and leather dyeing, so it is extensively used in clothes and bags.
Indigo dye can be used in food as additive to make the food colorful, but the amount used is limited.
Indigo dye makes women more beautiful and confident, and it promotes the progress of society and increasing of global economy.