Selsun Blue has been marketed as a more effective alternative to brand leader Head & Shoulders due to its superior performance in randomized trials.
These contained a different active ingredient than Selsun Blue, pyrithione zinc 1%, and are oriented toward the higher-end shampoo market.
Other active ingredients such as salicylic acid and botanicals are in other versions of Selsun Blue brand dandruff shampoo.
[3] The base brand consists of six types including Medicated with menthol, 2-in-1, Normal to Oily, Moisturizing, Itchy Dry Scalp, and Deep Cleansing with micro beads.
More specifically, selenium sulfide, an anti-infective agent, relieves itching and flaking of the scalp and removes the dry, scaly particles commonly referred to as dandruff or seborrhea.