Please note: this is a different product to Indigo Leaf Powder
The indigo plant has a long history of use as a natural dye for hair and textiles. Indigo leaves contain a substance called Indigotin which has a deep blue colour.
However, the leaves must be processed in order to extract this pigment. Indigo Dye Powder has been pre-processed and concentrated to contain 31% Indigotin.
This product can be used in cold process soapmaking to give a denim blue colour, in fact, Indigo was the original dye used to colour denim. We have seen good results using around half a tablespoon in lye for 500g of oils. However, we encourage you to experiment yourself and share your results in the reviews below.
This product is for external use only.