Washing your hair with two different shampoos is THE tip of celeb hair stylist Jen Atkin and is actually very logical. I like to use dry shampoo because my hair becomes a little greasy the second day after washing. Or actually only my roots become greasy, not my ends. The solution against greasy hair According to Jen Atkin, you should wash your hair with two different shampoos because the roots and ends are so different. At your roots you want it to be well cleaned, while your ends need hydration. If you also use a nourishing shampoo that gives a lot of hydration ...