Daily Scalp Routine for Dandruff — Seborrhoeic Dermatitis Shampoo Protocol

Scalp seborrhoeic dermatitis (dandruff) is extremely common. It is not caused by poor hygiene, but it does need a consistent routine. The biggest reason patients do not improve is that the shampoo is either not used often enough or rinsed off too quickly to work properly. ^(1–3)

The 4-week scalp protocol (step-by-step)

The simplest plan that works for most adults.

Step 1 — Choose ONE primary medicated shampoo

Pick one active ingredient to start (see options below). Use it 2 to 3 times per week. ^(2–5)

Step 2 — Use it correctly (this is the whole game)

• wet the scalp thoroughly
• massage shampoo into the scalp — not just the hair
• leave on 3 to 5 minutes (set a timer)
• rinse well

Conditioner is fine — keep it mainly on hair lengths and rinse thoroughly. ^(4,5)

Step 3 — Wash regularly between medicated washes

On the other days, use a gentle regular shampoo if needed to prevent oil and scale build-up. Infrequent washing often worsens dandruff in seborrhoeic dermatitis. ^(2,3)

Step 4 — Reassess at 3 to 4 weeks

Most patients see meaningful improvement within a few weeks if the routine is consistent. ^(2,3)

Step 5 — Maintenance (to stop relapse)

Once controlled, continue the medicated shampoo:

• once weekly, or
• every 1 to 2 weeks depending on how quickly symptoms return ^(2,3)

Which medicated shampoo should I choose?

The main evidence-based actives for dandruff and scalp seborrhoeic dermatitis:

Ketoconazole (antifungal)

A common first choice because Malassezia yeast plays a major role in seborrhoeic dermatitis. ^(1–3) Example product available in Australia: Nizoral 2% treatment shampoo. ^(4,6)

Selenium sulfide

Helps reduce yeast and slow flaking. Example: Selsun Gold contains selenium sulfide 2.5%. ⁽⁷⁾

Zinc pyrithione

Common in anti-dandruff shampoos and effective for ongoing control. ⁽³⁾

Coal tar

Helps slow scale build-up — useful for stubborn scalp flaking. ⁽³⁾

Salicylic acid plus sulfur (scale-lifting)

These lift and loosen scale so medicated shampoos can reach the scalp properly. ⁽⁵⁾

Piroctone olamine

A widely used anti-dandruff ingredient in “sensitive scalp” products. Example: Dercos Anti-Dandruff Shampoo for sensitive scalp.

You do not need all of these at once — one good protocol consistently beats a cupboard full of half-used shampoos.

How to rotate shampoos (when one stops working)

Some patients get best results by rotating actives, especially if dandruff returns quickly.

A simple rotation strategy:

• primary antifungal (e.g. ketoconazole) — 2 times weekly
• scale-lifting shampoo (e.g. salicylic acid) — 1 time weekly
• gentle regular shampoo on other days as needed ⁽⁵⁾

If the scalp settles, step down to maintenance — ketoconazole or your chosen active once weekly or fortnightly. ^(2–5)

Thick scale — how to lift it safely

If you have stubborn, adherent scale, shampoo alone can struggle because it cannot reach the scalp properly.

Options that help:

• add a salicylic acid shampoo 1 to 2 times weekly to loosen scale ⁽⁵⁾
• in very thick build-up, apply a scale-softening product overnight and wash out in the morning — a mineral oil-based scalp softener or a product designed for scale removal ^(2,3)

Avoid aggressive scratching or picking — it irritates the scalp and prolongs inflammation.

Hair type tips

If your scalp is oily

More frequent washing can help — oil and scale build-up often worsens dandruff. ^(2,3)

If your hair is dry, curly or chemically treated

You can still treat the scalp while protecting hair length:

• focus medicated shampoo on the scalp
• use conditioner on mid-lengths and ends
• alternate medicated shampoo days with a gentle shampoo as needed

When to see a doctor

Book a review if:

• you have followed the protocol properly for 3 to 4 weeks with minimal improvement
• the scalp is very red, sore or weeping
• you have thick plaques that may be psoriasis
• there is hair loss, broken hairs or concern for fungal infection (tinea)
• you need frequent strong treatments to stay stable ^(1–3)

Some scalp conditions mimic dandruff and need different management.

Where this fits

Adjacent reads in the seborrhoeic dermatitis library:

• Seborrhoeic dermatitis condition page — diagnostic overview
• Facial seborrhoeic dermatitis plan — nose, eyebrows, eyelids
• Cradle cap — infant seborrhoeic dermatitis
• Prescription treatments — when OTC is not enough
• Facial flaking guide — seb derm vs rosacea vs peri-orificial vs psoriasis

If your dandruff is persistent, your scalp is sore, or you are not improving despite a proper routine, the appointment confirms the diagnosis and tailors the plan to your scalp and hair type.