Selsun Blue is an over-the-counter (OTC) anti-dandruff shampoo brand specializing in the treatment and prevention of dandruff, itchy scalp, seborrheic dermatitis, and scalp flaking. The brand is widely recognized for its medicated formulations, particularly those containing selenium sulfide, a clinically proven antifungal ingredient that helps control the yeast associated with dandruff. Today, Selsun Blue is owned by Opella (formerly Sanofi Consumer Healthcare), the consumer health business that was separated from Sanofi. [1]

• Brand: Selsun Blue

• Product Category: Medicated anti-dandruff shampoo

• Current Owner: Opella (formerly Sanofi Consumer Healthcare)

• Original Manufacturer: Abbott Laboratories

• Availability: Sold in pharmacies, supermarkets, and online retailers across many countries

• Primary Purpose: Treatment and prevention of dandruff and scalp irritation [2]

Selsun Blue originated as a medicated dandruff shampoo developed by Abbott Laboratories. The brand later changed ownership several times:

• Originally manufactured by Abbott Laboratories.

• Acquired by Chattem in 2002.

• Chattem was acquired by Sanofi in 2010.

• Following the creation of Sanofi’s standalone consumer healthcare business, the brand became part of Opella.

• In some international markets, Selsun products are distributed by different regional companies, such as Rohto Pharmaceutical. [3]

According to the brand, Selsun Blue aims to normalize dandruff as a common and manageable scalp condition rather than something people should feel embarrassed about. Its products are designed to relieve symptoms such as:

• Flaking

• Itching

• Irritation

• Dry scalp discomfort

The company positions itself as a scalp-health specialist offering medicated yet hair-friendly formulas. [4]

Unlike cosmetic shampoos that primarily clean the hair, Selsun Blue contains active medicinal ingredients that target the underlying causes of dandruff.

Selenium Sulfide

The brand’s signature active ingredient is 1% selenium sulfide (in many OTC formulations).

Functions include:

• Reduces growth of _Malassezia_ yeast associated with dandruff.

• Slows excessive scalp skin-cell turnover.

• Reduces flaking and itching.

• Helps control seborrheic dermatitis.

• May also be used for certain fungal skin conditions under medical guidance. [5]

Other Active Ingredients

Depending on the product variant, Selsun Blue may also contain:

• Pyrithione zinc – another antifungal ingredient used for dandruff control.

• Salicylic acid – helps exfoliate dead skin cells and reduce scalp buildup.

• Moisturizing and conditioning ingredients to minimize dryness. [6]

The lineup varies by country but commonly includes:

Medicated / Maximum Strength

• Higher-strength dandruff control.

• Intended for persistent flakes and itching.

• Typically uses selenium sulfide.

Moisturizing

• Designed for dry hair while treating dandruff.

• Includes conditioning ingredients.

Daily Care

• Gentle enough for more frequent use.

• Focuses on maintaining a healthy scalp while preventing recurrence.

Itchy Dry Scalp

• Targets irritation and dryness.

Deep Cleansing

• Removes oil and scalp buildup.

• Some versions include salicylic acid.

2-in-1 Shampoo + Conditioner

• Combines cleansing and conditioning in one product. [7]

Selsun Blue products are commonly used for:

• Dandruff

• Seborrheic dermatitis

• Itchy scalp

• Flaky scalp

• Excess scalp oil

• Some fungal skin conditions (certain selenium sulfide formulations may be recommended by healthcare professionals) [8]

Common ingredients found across the range include:

• Selenium sulfide

• Pyrithione zinc

• Salicylic acid

• Menthol (selected formulas)

• Aloe vera

• Moisturizing conditioners

• Vitamins (in some variants) [9]

Selsun Blue competes with other anti-dandruff brands such as:

• Head & Shoulders

• Nizoral

• Dove DermaCare Scalp

• Neutrogena T/Gel (where available)

Its main point of differentiation has traditionally been the use of selenium sulfide rather than zinc pyrithione in many of its flagship products. [10]

Typical directions include:

• Wet hair thoroughly.

• Massage shampoo into the scalp.

• Leave on for several minutes (follow product instructions).

• Rinse thoroughly.

• Use as directed, often two or more times weekly depending on the formulation and condition being treated. [11]

Some users may experience:

• Dryness

• Temporary irritation

• Hair texture changes

• Increased oiliness or dryness depending on hair type

Products containing selenium sulfide should be used according to the label instructions, and contact with the eyes should be avoided. [12]

Selsun Blue is sold in many countries, including:

• United States

• Canada

• Australia

• Parts of Asia

• Latin America

Product formulations and ingredient concentrations may differ according to local regulations. [13]

Selsun Blue is best known for:

• Blue-colored medicated shampoo

• Clinically focused scalp care

• Selenium sulfide technology

• Long-standing presence in the dandruff treatment market

• Pharmacy and dermatologist-oriented positioning [14]

1. Selsun Blue

2. About Us

3. TR-199: Selsun

4. Selsun blue® | Antidandruff shampoo

5. About Us – SELSUN

6. Selenium Sulphide – Selsun

7. About | Selsun Blue®

8. Selsun blue® | Antidandruff shampoo

9. Normal-Oily Hair Antidandruff Shampoo With Menthol | Selsun Blue®

10. 2.5% Extra Strength Antidandruff Shampoo | Selsun blue®

11. Medicated Antidandruff Shampoo

12. Selsun Blue | Advanced Dandruff & Scalp Care

13. Selsun Blue | Combate la Caspa con Fórmulas Potentes y Efectivas

14. EncycloReader