4 fl oz / 118 ml (Classic and Amplified contain the same amount of dye regardless of its packaging - jar or bottle.) Manic Panic Hair Color is ready to use, do not mix with peroxide. Cream Formula Semi-Permanent Hair Color - Conditions hair - Vegan ingredients - PPD and ammonia-free - Made in the USA The dye may add tinted effect to dark blonde and brown hair. Brighter color results are best achieved by applying to hair that has been pre-lightened to very light blonde (level 9) and lighter. Manic Panic's Amplified™ formula of the semi-permanent hair color lasts 30% longer than Manic Panic High Voltage® Classic hair color. The name and color is the same, but the Amplified version will stay in hair brighter longer. #manicpanic #classic #amplified #ultraviolet #purple