I am a natural blonde. 6 weeks ago I went to a salon and asked to become a brunette. I left with darker blonde hair. 2 weeks after that I bought a box of permanent chestnut brown hair dye and used it. It has been 4 weeks since I did that. I like the color but now I am starting to get blonde roots. I want to go back to blonde so I don't have to deal with root upkeep. If I buy a box of hair color remover (Color Oops) and then dye over it will this be too much for my hair to handle? I have heard that Color Oops isn't very damaging or drying and can sometimes return your hair to its natural color. If not I will just buy a box of medium blonde hair dye for afterward.
PS: If I have to dye my hair after the Color Oops do you know of any blonde hair dyes that do not contain bleach? Just something to darken light blonde hair / tone any brassiness?