Nizoral Anti-Dandruff Shampoo is one of the best non-prescription options–in fact, without a prescription, you’d be hard-pressed to find another treatment with the anti-fungal treatment, Ketoconazole 1%. “Preventing dandruff consists of moisturizing and conditioning your scalp regularly, avoiding hair care products you’re sensitive to, and using shampoos that have either ketoconazole, selenium sulfide, salicylic acid, zinc or tar,” offers board-certified dermatologist Dr. Peterson Pierre.

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