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How long do you leave redken shades e q on your hair?
30 min_________________Most importantly, you should check the manufacturer's direction for processing times as they can differ from color line to color line. But in general, when depositing color, it...
It depends on the type of dye you are using.
Most permanent dyes process in about 25-30 minutes.
I would imagine most semi- and demi-permanent dyes are about the same.
If you are using a vegetable...