So, here are our top picks, informed by expert ... solutions you can use in a thinning-hair shampoo is a familiar foe of dandruff, too: ketoconazole, the antifungal ingredient.

One of them is using ketoconazole shampoo, a topical solution with antifungal properties. It is primarily used to control dandruff, which causes white or yellowish flakes on the scalp. Products ...