Dry, itchy, and flaky sound familiar? Dandruff affects one in five people and can be caused by things such as oily skin, dry skin, not shampooing enough, sensitivity to haircare products and even skin conditions like psoriasis and eczema. The good news: dandruff can be easily treated. Ahead, we’ve rounded up six of the best anti-dandruff products that will hydrate and soothe the scalp, while leaving your hair flake-free.