Why does hair color keep fading?

Why does hair color keep fading?

A common reason behind fast-fading hair color is insufficient processing time, meaning the hair color did not stay on long enough. … Grey hair cuticles are tightly packed down and take longer to open and absorb artificial hair color molecules.

Will dyed dark hair fade?

Black hair dye is incredibly hard to fade. If it does fade, and your natural color is brown, it'll fade into that. However, it may just stay black.

How long does permanent hair dye last before it fades?

four to six weekIn general, permanent color will remain on your hair until your hair grows, exposing the roots. Usually, this takes between four and six weeks before you need to go back and get your roots done. The four to six week window is also when the permanent color will begin to fade (usually after around 28 shampoos).