Minutes of your time will turn your hair to the shiny, bold black color you always dreamed of, for up to 30 days.The conventional hair dyes you’ve probably been using are a cocktail of strong chemicals. Dexe Black Instant hair dye shampoo will not only help you avoid damaging your hair, it can also strengthen it and repair the damage! As a result, they help nourish, detoxify and protect your scalp and hair