Novavis 1N Black Vegetable Dye is a product that dyes and covers gray hair from the first application and does not harm the hair since it contains vegetable extracts and is ammonia-free. The kit contains: 1 bottle of dye, 1 bottle of developer glycol, 1 free sample of 15 ml shampoo or restructuring cream, 1 pair of gloves and 1 instruction booklet. It is recommended 1. Mix in a plastic or glass container the dye with vegetable extracts and the Developer Glycol in equal parts, only the necessary for an application. Mix well before applying. Use the gloves included inside the box. 2. Apply to dry hair without washing it. 2.1. On hair without any dyeing or perm: it is applied from the roots to the ends, leaving it exposed for 40 minutes. 2.2. On dyed or permed hair: Apply only to the root, leaving it exposed for 30 minutes. Then spread the color to 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 Novavis Line 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. Does not contain ammonia.