Selenium Sulfide
Selsun Blue is a medicated shampoo containing selenium sulfide, used to treat and control dandruff, seborrheic dermatitis, and tinea versicolor (a fungal skin infection). It works by reducing the rate at which skin cells die and flake off, while also helping to control the yeast-like fungus that contributes to these conditions. The medication is applied topically to the scalp or affected skin areas and is typically left in place for several minutes before rinsing.
Selsun Blue is a topical antifungal shampoo used to treat dandruff and related scalp conditions.
Key facts at a glance
- RxNorm
- 219850
- Generic
- Selsun Blue
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Treats and controls dandruff, seborrheic dermatitis (scalp eczema), and tinea versicolor (a fungal infection causing skin discoloration). May also help relieve associated scalp itching and flaking.
Contains selenium sulfide, which has antifungal and anti-inflammatory properties. It reduces excessive skin cell turnover and controls the growth of yeast on the scalp that contributes to flaking and irritation.
For external use only. May discolor jewelry or hair (especially chemically treated or gray hair). Avoid contact with eyes, and rinse thoroughly if eye contact occurs. Use as directed, typically 2-3 times per week for several weeks, then less frequently for maintenance. Consult a doctor before use on children or if symptoms persist.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy