Using this Tulip hair dye is easy. First, do a patch test on your skin to make sure you're not allergic. Then, wash your hair and dry it with a towel. Take the dye and spread it evenly on your hair using a tint brush or comb. Wait for around 20 - 45 minutes to let the colour develop. After that, rinse your hair until the water runs clear. For the best, vibrant results, it's recommended to use the dye on bleached or pre - lightened hair. But if you want a more subtle look, you can use it on untreated hair. Since it's 100% Vegan and Cruelty - Free, you can use it with a clear conscience. And don't forget, you can mix it with other Directions hair dyes to create your own special shade. Always store it in a cool, dry place to keep it in good condition.