Nizoral shampoo 2% is used to treat fungal infections that cause dandruff, seborrhoeic dermatitis and tinea versicolor. The active ingredient is ketoconazole and you can buy Nizoral shampoo 2% online fromNizoral (Ketoconazole) Shampoo 2% (100ml/Bottle) 2 Bottles $0.29 per mL....