4 oz. Vegan, cruelty and PPD free Instructions included Semi-permanent; lasts up to 4-6 weeks Made in USA Do not mix with peroxide For best results Vibrant color results are best achieved by applying to hair that has been pre-lightened with Manic Panic Flash Lightning Bleach Kits. Bleaching thoroughly to a level 9 or 10 before dyeing is recommended for the best results.