Whenever you make use of it, naturally-derived black hair pigment origin darkens each and every gray hair, which makes it gradually a lesser amount of natural. Practical for the very first time, foam type. Leave time is 5 minutes. Is usually used over and over again. Hair which is white cannot be dyed entirely black. Once you quit working with it, it will approach your first hair color even in 1-2 months. This course is a cosmetic hair coloring that colors the hair surface. The way to use: Until gray hair is inconspicuous. Start using it by switching the day time about 5 times in 2 months. If you use it for the whole hair, it is about 5 times for just one. To maintain sought-after surface texture, use it as soon as a week as a guide.