Equate 2 in 1 Ultra Sport Dandruff Shampoo and Conditioner with Pyrithione Zinc 31.4 Fl oz. Advanced formula helps improve the health of hair and scalp. Prevents recurrence of flaking and itching associated with dandruff. Clean lemon-lime scent. Compare to Head and Shoulders active ingredient. Shake well, wet hair, massage onto scalp, rinse, repeat if desired. For best results use at least twice a week or as directed by a doctor. For maximum dandruff control use every time you shampoo.