IT'S IMPORTANT TO WAIT You may need to do another bleach bath depending on your hair condition and what color you are going for. (Especially if you use Loreal's Quick Blue bleach powder.) The coconut oil speeds up the lightening process so you may need to save your roots for last. I would only use 40 volume developer if you know your hair is extremely stubborn to lift and it's virgin hair. **Do not leave bleach on longer than 60 minutes. RAW Deep Purple, Manic Panic Voodoo Blue, Manic Panic Rockabilly Blue, Punky Atlantic Blue, SFX Blue Velvet & Ion Brights Red