Semi-permanent hair color is a type of hair dye that does not contain ammonia, making it less damaging to the hair than permanent hair color. It is also less likely to cause allergic reactions. Semi-permanent hair color typically lasts for 4-8 weeks, but it can fade more quickly if the hair is washed frequently or exposed to sunlight.
Semi-permanent hair color is a good option for people who want to change their hair color without damaging it. It is also a good option for people who want to try out a new hair color without making a long-term commitment. Semi-permanent hair color can be used to create a variety of looks, from subtle highlights to bold, all-over color.