what is the worst can happen? my nail client wants me to do a full head highlight on her in two weeks after she come back from her greek holiday. She's always had a perm to give her root lift. She had it done about 6 weeks ago but then she had to go back and had the crown area redone coz the perm wasn't holding. She now tells me she wants to go blonde between a Level 9 to a 10. she is a 7 at the moment. I took hair cuttings from her head around the crown area. Im not sure whether I should be using bleach, majiblond or majirel or best not to do it all as it is permed. I've only been hairdressing for 2 years and have never really experienced dealing with permed hair. I use L'Oreal products. Many thanks and I look forward to receiving some advice.