Clients with dyed blond hair, whose natural color is black or brown, will be surprised! In the past they could easily be exposed as "false blonds" because of their too prominent or dark eyebrows. This belongs to the past as eyebrows can now be lightened by up to 3 levels with RefectoCil No. 0 blond and as a result will match perfectly with the shade of bleached/dyed blond hair.