I want to lighten my hair, it is currently a medium brown/red color. I am going to henna/manic panic it red a few days after the bleaching. I got the L'oreal quick blue bleach tub and oreor creme 40 developer. My hair is up to my nipple (Not sure how many inches). How many ounces of developer and how many ounces of powdered bleach would I need?
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