elliotf9
Well-Known Member
I saw a debate the other day on another hair forum about peroxide strength on white hair. Some said use 3% and some said use 6%. I have two clients who have 90% white hair and 10% grey hair. The first client according to her record card she has given me her previous hairdresser used to use 3% with 8nn and 9n&9gb. The second lady who hasn't had her hair done since August last year has no colour left in her hair now and likes different shades on the '9' level. Should I use 3% or 6% in the colours for their foils? I always thought you used 6% to lift white and grey hair. Any ideas?