Review Of How Long Should Dye Stay In Hair References. However, there are a number of factors that can impact how long the dye lasts, so it is important to keep this. Web in general, dye is likely to last for about four to six weeks.
The hair dye wishes 30 minutes for the ammonia and peroxide to work their way into the hair cuticle to alternate. It may take anywhere between 6. The dangers and signs of expired hair dye.
