How long does semi permanent hair dye last?
It really depends on your hair. I have a friend who is blond and she used semi-permanent orange hair dye and her hair took like 2 months to fade. I tried to use semi-permanent hair dye once do go from my natural brown to black and I left it on the whole recommended time and it didn’t change my hair color at all. I use permanent hair dye and it fades almost completely in a month. Typically semi-permanent is supposed to last two weeks. It really depends on your hair though.
