It's Edgy Crazy Color offers wild color palette for un-hinged results It's Easy Crazy Color is ready to use, hassle free develops in 15-30 minutes It's Effective Get Crazy Color confidence from first application Crazy Color Natural Black 32 colour 100ml For Professional Salon Use Conditioning hair colour cream. For vibrant shades crazy colour should be applied to bleached hair. It can be applied to normal hair but the effects would be considerably weaker on medium to dark hair but better on Blonde. Most users of Crazy Colour apply to pre bleached hair. Crazy colour does not require the addition of peroxide. Directions:After shampooing, towel-dry the hair and apply direct, spreading evenly over the hair. Leave for 10/15 minutes, then rinse thoroughly.