When it comes to the size of hair dye, the average time is 50 to 100 hours.
It can take anywhere from 2 hours to 4 hours depending on the hair type and color of the hair. Some dull hair color dye can take anywhere from 2 hours to 4 hours depending on the hair type and color, the amount of hair it dye will last for about 5 hours. Usually, the hair color dye is not recommended to take 5 to 10 hours, while the hair itself will be dulled.