Cool How Many Washes To Fade Permanent Hair Color Ideas. Lighter colors will fade quicker while darker colors will last longer.” This kind of shampoo is pigmented and designed to add color back into your hair with each wash to delay or reverse fading.
As mentioned by experts like wella professionals, permanent hair dye typically keeps your hair looking lush and vibrant for about 6 to 12 weeks. Then there is permanent hair color, which isn't exactly permanent either. Depending on the type of hair colour you use, it can take anywhere from one to multiple washes to completely fade the colour.
