Incredible Hair Care After Dying References. The dehydration of the skin causes the skin to shrink and retract, which makes the hair look longer. Wait for three days before you wash freshly colored hair do not wash your hair for at least 72 hours after the hair color application;

Web one of the biggest mistakes people make is washing their hair too soon after dyeing their hair. Hair products combined with water will fade your hair dye quickly. Web ways to take care of coloured hair 1.