sulfur hair

According to the product listings, selenium sulfide is the active dandruff ingredient used to help prevent the recurrence of an itchy, flaky scalp.

Product details list the shampoos as suitable for a range of hair types — some are labeled 'All Hair Types' (including dry and normal), while others are specified as for 'Normal' hair. Options cover both broader and more specific suitability.

One formula is medicated and contains cooling menthol, while another is made with aloe. Both formulas list selenium sulfide as the active ingredient and are described as dermatologist tested.

The product details warn that the shampoos are eye irritants and advise keeping them out of reach of children.

The listings state the shampoos help moisturize hair or alleviate dry scalp in addition to addressing an itchy, flaky scalp.