Wella Koleston Intense Hair Color 303/0 Dark Brown offers professional-quality hair color with 100% gray coverage and vibrant, long-lasting results. Enriched with argan oil and deep moisturizers, it nourishes and hydrates hair, leaving it shiny and healthy. Easy to apply at home, it provides a salon-quality finish. Key Features 100% grey coverage Long-lasting color up to 8 weeks Moisturizing treatment with argan oil Deep conditioning benefits Easy to apply, non-drip formula Para-phenylenediamine, Resorcinol, Aqua, Cetearyl Alcohol, Propylene Glycol, Ammonium Hydroxide, Fragrance.Wella: Experts in professional hair color and care, known for innovative formulas and vibrant results.Mix the colorant and developer as instructed in the kit. Apply evenly to dry, unwashed hair, focusing on the roots first, then through to the ends. Leave on for the recommended time, then rinse thoroughly.Perform a patch test 48 hours prior to use. Avoid contact with eyes. Keep out of reach of children.