How to dye my naturally black hair a medium/dark shade of brown, using professional products like those found in the salon? I won't use the kits found in the store. I want to buy the color and 20 or 30 volume developer separately in the beauty supply store. If anyone is familiar with "Clairol", or "Wella", that would be great. If you are a professional hair colorist, that would be even better! Thanks, mssherryk
