Incredible How Long Does Semi Permanent Hair Dye Last References. If your hair has been bleached multiple times, it may struggle to hold on to the colour, particularly colours such as pink, blue, green or silver. As is the case with any type of colour service, this estimate is also dependent on the hair products you use and your usual styling routine.

As is the case with any type of colour service, this estimate is also dependent on the hair products you use and your usual styling routine. If your hair has been bleached multiple times, it may struggle to hold on to the colour, particularly colours such as pink, blue, green or silver.





