Drastic Hair Coloring

Please go to a reputable salon colourist as we all have many underlying colour pigments in our hair , as we all love our hair please do this as my natural colour is light brown & in one of my many mad moments(a few years back) I thought I would do it myself & ended up with orange hair, yes as a hairdresser i should've known better!!, but my hair could not take 30 vol as it is fine, so heed my story & save yourself unesessary misery as in broken, porous, dried up hair& I would not want this to happen to You!!Take Care,Simone.(C). :)

I am considering a drastic hair recoloring. I would like to go from medium brown to medium blonde and am wondering what product I should use. How will I know if it contains enough peroxide? I'd like to know about what products to use, but also if I should have it done professionally.