How Permanent Is Permanent Hair Dye?

Permanent hair dye (like the name suggests) is designed to last longer than temporary and semi-permanent hair dyes, however, it still doesn't last forever. Unlike semi-permanent hair dye that's designed to last just a few shampoos, permanent hair dye penetrates the hair strands more, locking in the colour for longer.

How long does a permanent hair color last?

Ideally, *permanent hair colour* would stay vibrant forever, or at least until the roots grow. On most heads of hair, that would mean getting a good 6-8 weeks between touch-ups – but sometimes, even with permanent dye, colour fade can happen within a few weeks.

How permanent is permanent hair color?

Permanent hair color can lighten, darken, or change the tone of your hair; and it'll last about six to eight weeks. It often needs a root touch-up about every four weeks because dark roots are noticeable as the hair grows out, especially if hydrogen peroxide was used to substantially lighten your natural color.