i've gone platinum a few times and i find it to be the most difficult hair colour to achieve and maintain, especially when your natural colour is brown. first off, don't do it yourself! go to a professional! i've witnessed the horrid results of home bleaching and they are not pretty. one girl i know ended up with orange bozo the clown hair and another had to have all her lovely long locks shorn off because of the damaging effects of the processing. second, expect a lengthy and expensive process...and painful! it'll take quite a while to get your medium brown hair to platinum and the chemicals will no doubt irritate your scalp during and after the process. a hint - go into the salon with 'dirty' hair, this protects the hair and scalp from becomming too dry and itchy. to keep your hair from going brassy, buy a toning cleanser and conditioner, avoid intense heat from styling, and stay clear of chlorine and direct sunlight/tanning beds. be good to your hair! i started out with dark brown hair and the results were very good but what an investment of time and money it was...
GOOD LUCK!
