Shampoo.....

.. Before Color – not advised to have your hair colored if your hair is clean. Actually, you should not shampoo your hair for 24 to 48 hours before the color is added. The reason is that you need your scalp to have some natural oils present, which helps the color adhere better. Additionally, with an unwashed scalp, the color will penetrate deeper into the hair follicles, making it last longer. In addition to an unwashed scalp helping the color stay, it will also act as a protective barrier so that your head does not become irritated from the chemicals in hair color. Therefore, the longer you can go without washing your hair before you have color applied the better.


After Color – Just as you want the scalp to be unwashed for up to 48 hours before the hair color is applied, you also want to wait for 24 to 48 hours after the color is added before shampooing. By waiting to wash your hair, the color has more time to absorb, meaning it will be richer and more consistent. Although it might be tempting to wash your hair in 24 hours or less, you will have a more beautiful head of hair if you wait.


Everyday – Many people wash their hair on a daily basis simply because they like a clean head of hair. However, if your hair is colored, each time you wash it, even with permanent coloring, some fading will occur due to the sulfates found in many shampoos. Then in addition to the shampoo, conditioners and other hairstyle products do not provide any protection whatsoever to the sun’s rays, which also cause hair color to go through a slow oxidation process. Therefore, instead of shampooing and conditioning your hair on a daily basis, as you normally do, extend that time to every second or third day to help the color last longer."