Specifications: - Unlike other hair color products, the treatment type hair color with high concentrated ampoule offers you various hair styling experience within a short period of time. - It just takes you 5 minutes and will last for 7 days. Application: 1. After shampoo, towel dry your hair without using rinse nor treatment. 2. Apply the hair treatment onto the desired areas. 3. Leave it for 5 minutes and rinse with lukewarm water. If you wish for brighter color, you may rinse your hair after 5-10 minutes. 4. Dry your hair completely.