Crazy Color semi-permanent hair color cream by Renbow. 41 great colours to choose from. Do not mix with peroxide. To ensure the colour is as expected, test on a small swatch before application. For best results, apply to pre-lightened/bleached hair. After shampooing, towel dry hair and apply Crazy Color evenly over hair (wear gloves). Leave for 15-30 minutes, then rinse thoroughly. Hair colourants can cause severe allergic reactions. A preliminary skin sensitivity test should first be made. This product must not be used for dyeing the eyelashes or eyebrows. This product is not intended for use on persons under the age of 16. Temporary “black henna” tattoos may increase your risk of allergy. Do not colour your hair if; you have had a rash on your face or sensitive, irritated and damaged scalp, you have ever experienced any reaction after colouring your hair or you have experienced a reaction to a temporary “black henna” tattoo in the past. Crazy Color may stain.