Ketoconazole shampoo is a medicated shampoo designed to treat fungal infections affecting the scalp. You can use it for conditions like stubborn dandruff, psoriasis, and more. Shampoos.

A randomized, double-blind, placebo-controlled trial of ketoconazole 2% shampoo versus selenium sulfide 2.5% shampoo in the treatment of moderate to severe dandruff. ncbi.nlm.nih.gov/pubmed.

Ketoconazole shampoos have an antifungal, an ingredient that kills the fungus that can cause dandruff. Pyrithione zinc shampoos use an antifungal called zinc pyrithione that also fights bacteria.