Known as: PYRITHIONE ZINC 5 mg in 1 mL TOPICAL LOTION [Head and Shoulders Conditioner Smooth and Silky], PYRITHIONE ZINC 0.5 g in 100 mL TOPICAL LOTION [Head and Shoulders Conditioner Smooth and Silky], PYRITHIONE ZINC 0.5 g in 100 mL TOPICAL LOTION [Head and Shoulders Instant Hydration Hair and Scalp Conditioner]