Daylogic Dandruff Shampoo Medicated Blue 11 fl oz compares to the active ingredient of Selsum Blue. This boosts maximum medicated dandruff control and helps promote thy hair & scalp. It has selenium sulfide 1% and aids in of itching and flaking associated with dandruff and seborrheic dermatitis and to help chance of reccurance. Medicated dandruff control. Promotes thy hair & scalp. Selenium Sulfide 1%. recurrence of dandruff. Compares to active ingredient of Selsum Blue.