Novavis's 4N chestnut vegetable dye is a dye that allows hair to be dyed effectively from its first application. In addition, its preparation is based on Bio cosmetics, which mistreats the scalp less when it comes into contact with it, and its components manage to leave hair shiny and silky. Ammonia-free hair dye with vegetable extracts. Tints and covers gray hair from the first application. 1. In a plastic or glass container, mix the dye with vegetable extracts and the Glycol Developer in equal parts, only what is necessary for one application. Mix well before applying. Use the gloves included in the box. 2. Apply to dry hair without washing it. 2.1. On hair that has not been dyed or permed: it is applied from the roots to the ends, leaving it exposed for 40 minutes. 2.2. On colored or permanent hair: Apply only to the roots, leaving it exposed for 30 minutes. Subsequently, extend the color towards the ends, leaving it to act for another 10 minutes. The total exposure time is 40 minutes. 3. Rinse well until the water is clear, then wash the head with shampoo. Rinse with lukewarm water, dry and apply the Restructuring Cream, comb to spread it well over all the hair, leaving it to act for 5 minutes and rinse. Follow the instructions found inside the box. Keep out of the reach of little kids. Store in a cool, dry place.