Nutrafol knows that healthy, thicker hair starts at the root ... the best targeted solutions you can use in a thinning-hair shampoo is a familiar foe of dandruff, too: ketoconazole, the antifungal ...

We did you a favor and rounded up 19 of the best ... truly targets the root cause of your irritation This shampoo is made with 1% Ketoconazole to target dandruff-causing fungus.