Lighten hair with a permanant "dye" over an old "dye"
Hmm...
What are your thoughts on how this would work? If you can explain how you think it will go I'll be happy to advise further
Thanks.....
My sister has coloured her hair quite sometime ago with a home kit by loreal(castings)...... Their doesn't seam to be a root regrowth visible on the hair & I think she had used it more to cover grays than change her natural colour..... When I've looked at her hair it appears to have faded out rather than grown out.....(she's now a base 4 medium brown & would like me to lighten her hair up to 7 medium blonde)(the tones still undecided at the moment) I'm unsure how the semi permanent hair colour used before would effect this process??? & also with her having very long hair what would be the best method to apply the product (ie mid length to ends then roots ?)
Be grateful for some advice as still in training for hairdressing and not come across this problem before