Key takeaways
- Dandruff is caused by scalp yeast, oil, and product sensitivity — not poor hygiene, and it isn't contagious.
- Use a medicated anti-dandruff shampoo and leave it on for 3–5 minutes before rinsing.
- Match the active ingredient to your scalp: zinc pyrithione for everyday use, ketoconazole for stubborn cases.
- Keep two shampoos with different actives and rotate them if one stops working.
- See a dermatologist if flaking, itching, redness, or hair loss persists after a few weeks.
How to Reduce Dandruff: What Actually Works
Those white flakes on your shoulders aren't a sign you don't wash enough — and you don't have to live with them. Here's a no-nonsense plan to get an itchy, flaky scalp under control and keep it that way.
Why dandruff happens
Most dandruff comes down to a few overlapping causes: an overgrowth of natural scalp yeast, an oily scalp (seborrheic dermatitis), a dry scalp, or sensitivity to hair products you're using. Stress, cold dry weather, and hormones can all tip the balance. Figuring out which one is driving yours helps you pick the right fix.
The step-by-step routine
1. Switch to a medicated anti-dandruff shampoo
A regular shampoo cleans hair; a medicated one treats the scalp. Pick one with a proven active ingredient (see the table below) and make it your main shampoo, not an occasional one.
2. Let it sit before rinsing
This is the step almost everyone skips. The active ingredient needs time to work on your scalp — lather it in, then leave it for 3 to 5 minutes before rinsing. A 10-second wash-and-rinse does very little.
3. Wash often enough — but not violently
If your scalp is oily, washing more frequently (every day or every other day) removes the oil that feeds the yeast. If it's dry, ease off to a few times a week. Use lukewarm water, not hot, and massage with fingertips rather than scrubbing with nails.
4. Rotate ingredients if one stops working
Scalps can adapt and a shampoo that worked great may seem to fade. Keep two bottles with different active ingredients and alternate them, or switch every few months.
5. Go easy on styling products
Gels, waxes, and dry shampoo build up and can trap oil and flakes. Use less, and wash them out properly. If a medicated shampoo leaves your hair dry, follow with a light conditioner on the lengths only — keep it off the scalp.
Which active ingredient should you use?
Most over-the-counter anti-dandruff shampoos work, but they don't all do the same thing. Match the ingredient to your situation:
| Active ingredient | How it works | Best for |
|---|---|---|
| Zinc pyrithione | Antifungal & antibacterial | Everyday use and mild, ongoing dandruff |
| Herbal (tea tree, ginger, neem) | Natural antifungal / soothing (milder) | Mild flakes or those wanting a gentle, natural option |
| Climbazole | Antifungal, gentle enough for daily use | Mild-to-moderate dandruff and ongoing maintenance |
| Ketoconazole | Strong antifungal | Stubborn dandruff and seborrheic dermatitis |
| Selenium sulfide | Slows skin-cell turnover, antifungal | Moderate to heavy flaking |
| Salicylic acid | Exfoliates and lifts scale buildup | Thick, crusty scaling (can dry the scalp — pair with a moisturising rinse) |
| Coal tar | Slows cell turnover | Flaking linked to scalp psoriasis |
Recommended shampoos you can buy
Heads-up: the links below are Amazon links and may earn us a small commission at no extra cost to you. Pick the one that matches your scalp — you don't need all of them. They're ordered from gentlest to strongest.
Head & Shoulders Anti-Dandruff Shampoo
The easiest starting point for mild, ongoing dandruff. Gentle enough for regular use, widely available, and well-tolerated by most scalps.
Check price on Amazon →Mamaearth Anti-Dandruff Shampoo (Ginger)
A milder, more natural option for light flakes and sensitive scalps — it uses ginger and other plant actives instead of strong medicated ingredients, and is free from sulphates. Best for maintenance and mild cases, not stubborn dandruff.
Check price on Amazon →Scalpe Pro Daily Anti-Dandruff Shampoo
A climbazole-based daily shampoo — climbazole is a gentle antifungal that keeps the dandruff-causing yeast in check without the harshness of stronger medicated formulas. Good for managing mild-to-moderate dandruff day to day. (Note: this is a different product from Scalpe+ further down.)
Check price on Amazon →Nizral 2% (Ketoconazole)
A strong antifungal for dandruff that won't shift and for seborrheic dermatitis. Apply to a wet scalp, leave on 3–5 minutes, then rinse; use about twice a week for four weeks, then taper to maintenance. (Sold as both a 2% medicated solution and a shampoo — check which one you're buying.)
Check price on Amazon →Scalpe+ / Keto Plus (Ketoconazole 2% + ZPT 1%)
A dual-action medicated formula for tough cases — the ketoconazole attacks the yeast while the zinc pyrithione adds antibacterial action and helps stop dandruff coming back. Pick this if a single-ingredient shampoo hasn't been enough. (Different from Scalpe Pro above — this is the stronger, medicated combo.)
Check price on Amazon →Selsun (Abbott) Anti-Dandruff Shampoo
A long-trusted dual-action formula for moderate to heavy flaking — it both tackles the yeast and clears built-up dead skin. Leave on 2–3 minutes before rinsing. (Can leave a slightly oily feel; avoid on colour-treated hair.)
Check price on Amazon →Salicylic Acid Anti-Dandruff Shampoo
Best when flakes are thick and crusty rather than oily — it exfoliates the scale buildup. Can be drying, so follow with a light conditioner on the lengths.
Check price on Amazon →Coal Tar Anti-Dandruff Shampoo
For flaking linked to scalp psoriasis rather than ordinary dandruff — it slows down the rapid skin-cell turnover that causes the scale. Has a stronger smell and can stain light or colour-treated hair, so use as directed.
Check price on Amazon →Habits that help from the inside
Managing stress, getting decent sleep, and a balanced diet (enough zinc, B vitamins, and omega-3s) all support a healthier scalp. Sunlight in moderation can help too. None of these replace a good shampoo, but they make the whole routine work better.
Stick with the routine for a few weeks before judging it — dandruff control is about consistency, not a one-time fix. Once it's clear, keep using your medicated shampoo (even just once a week) to stop it coming back.
If any of this resonates, the daily Instagram is where I post the actual examples — @dressingschool.