Selsun Blue Dandruff Shampoo

If flaking, itching, and that visible dusting on dark shirts have become a daily nuisance, Selsun Blue is the medicated shampoo people reach for when everyday products stop cutting it. The line's staple, Selsun Blue Dandruff Shampoo (11 oz.), uses 1% selenium sulfide — an active ingredient that slows the excess skin-cell turnover behind stubborn dandruff and seborrheic dermatitis, rather than just masking it. A hint of menthol leaves the scalp feeling cool and clean after each wash.

The most common question buyers ask is how often to use it. For active flaking, selenium sulfide shampoos are typically worked into wet hair, left on the scalp for a few minutes, then rinsed thoroughly — usually twice a week until symptoms ease, then less often for maintenance. Massaging it into the scalp (not just the hair) is what makes the difference, since that's where the flaking starts. Always follow the label directions and rinse well to avoid any temporary discoloration on lighter or color-treated hair.

Because it's a treatment shampoo, many people keep it in rotation alongside their regular product rather than replacing it entirely. The 11 oz. scented bottle lasts a long while at twice-weekly use, making it a practical pick for households managing recurring dandruff or an itchy, oily scalp through the changing seasons.

Selsun Blue sits within our broader personal care and scalp treatment range. If you're stocking a cabinet or comparing options, browse related lines carried at Honest Medical, and reach out if you need guidance on selenium sulfide versus other anti-dandruff actives for a specific scalp concern.