Hi, I wonder if there are conditions to get a good result if I apply a 9/97 on my very light highlighted hair. I am "red-toned" at the base with a tendency to red pigments and quite a few gray strands nowadays. I thought it was a bit too light last time at the hairdresser and would like to be a bit more blonde-beige in a cool tone. The hairdresser first talked about this option but then changed their mind and thought I should choose platinum blonde instead to get rid of yellow tones after a while. What do you think?
1 product in post 9/97 on very light highlighted hair?