What to do when you don’t like the color you dye your hair? “Tell your colorist in a calm way that you are unhappy with how the look turned out, and he or she will be understanding,” Hazan says. Try to explain exactly what you don’t like about the color.
How soon can you recolor your hair after coloring it? As a general rule, wait at least four weeks, and preferably six weeks, before starting another treatment. Semi-permanent hair color can be used more frequently than permanent tints if desired. It is designed to fade, which means more frequent treatment is needed.
How long should I wait to Redye my hair if I don’t like the color? Melissa Gilbert, beautician at Fantastic Services, says that you don’t want to be in too much of a rush to re-dye your hair (yup, even if it looks really, really bad). “Experts advise waiting at least 2 weeks (technically 15 days) before dyeing it again.
Can you color over already colored hair? You won’t be able to go from a dark dyed color to a lighter color without using bleach or some form of a color correction process first. Generally, it’s best to wait four to seven weeks before re-dyeing your hair so that you don’t damage it, but you can try to dye it earlier if you really hate your current dye-job.