Top 5 Anti-Fungal Dandruff Shampoos 2026: Which Are Worth the Money?

Top 5 Best Anti-Fungal Dandruff Shampoos 2026

There are dozens of anti-dandruff shampoos on the Vietnamese market, but most only wash away surface flakes without killing the Malassezia fungus causing the problem underneath. As a result, dandruff keeps coming back even with daily washing.

This article offers a candid analysis of 5 shampoos with medically proven antifungal active ingredients: Nizoral, Selsun Blue, Head and Shoulders Clinical Strength, Sebamed Anti-Dandruff and Ducray Kelual DS. No exaggeration, and no product has paid to be featured. You will learn which one suits you, how to use it correctly for real results, and when shampoo alone is no longer enough to resolve your scalp problem.

Quick Answer: Which One Actually Treats Fungal Dandruff?

Of the 5 products reviewed, Nizoral, with the active ingredient ketoconazole, is the option most favoured by dermatologists for moderate to severe fungal dandruff, as it has the strongest clinical evidence in the group. Selsun Blue is an effective, good-value option for mild to moderate dandruff. Sebamed and Ducray Kelual DS are suitable for sensitive scalps or persistent dandruff that does not respond to a single active ingredient. Head and Shoulders Clinical Strength is best suited to the maintenance phase after intensive treatment, not as a first choice for severe dandruff.

Even more important than choosing the right product is using it correctly: leave the active ingredient on your scalp for at least 3 to 5 minutes before rinsing. This is the step most people skip, and it is the main reason anti-dandruff shampoos seem "ineffective" even when the right product was bought.

Product	Active ingredient	Suitable dandruff severity	Key highlights	Reference Price
Nizoral 1% and 2%	Ketoconazole	Moderate to severe	Strongest clinical evidence	Varies by pharmacy
Selsun Blue	Selenium sulfide 1%	Mild to moderate	Reduces flaking fast, good value	Varies by pharmacy
Head and Shoulders Clinical Strength	Selenium sulfide 1%	Mild, maintenance	Pleasant scent, suitable for regular use	Varies by pharmacy
Sebamed Anti-Dandruff	Piroctone olamine + Climbazole	Mild to moderate, sensitive skin	pH 5.5, low irritation	Varies by pharmacy
Ducray Kelual DS	Ciclopirox + Zinc pyrithione	Moderate to severe, persistent dandruff	Multiple actives, reputable dermocosmetic brand	Varies by pharmacy

What Is Fungal Dandruff and Why Can't Regular Shampoo Treat It?

Everyone's scalp is home to a yeast called Malassezia, which lives there harmlessly under normal conditions. When the scalp produces excess sebum, the environment is humid or the immune system is weakened, Malassezia overgrows and starts breaking down sebum into fatty acids that irritate the scalp. The scalp responds with inflammation and faster skin cell shedding, producing white or yellowish flakes known as dandruff.

No matter how well it cleanses, regular shampoo only washes away surface flakes without killing the Malassezia fungus causing the problem underneath. This is why dandruff keeps coming back after every wash. Real treatment requires an antifungal active ingredient that can inhibit or kill Malassezia directly on the scalp.

It is important to note that not every white flake on the scalp is fungal dandruff. Scalp psoriasis, contact dermatitis and some other scalp conditions also cause dandruff-like flaking but require completely different treatment. If you have used an anti-fungal dandruff shampoo correctly for 4 to 6 weeks without improvement, the problem is most likely not ordinary fungal dandruff, and you should see a dermatologist for an accurate diagnosis.

Dr. Ha Dong, Hair Follicle Analysis Specialist at CMEI International Clinic: "Persistent fungal dandruff is not only uncomfortable but also creates chronic inflammation on the scalp. Prolonged inflammation around the hair follicles can gradually weaken them over time and contribute to hair loss. Treating fungal dandruff properly is therefore not just a cosmetic matter but is directly linked to long-term follicle health."

Evaluation Criteria for This Review

To ensure this review is medically grounded and practical, the 5 products were assessed against the following specific criteria.

• Antifungal active ingredient: type of active, concentration, published clinical evidence and mechanism of action against Malassezia.
• Real-world effectiveness: feedback from actual users combined with the scientific basis of the product's active ingredient.
• Suitability for different users: scalp type, dandruff severity, skin sensitivity and cases where the product should not be used.
• Medically correct usage: frequency, contact time on the scalp, and the distinction between the treatment phase and the maintenance phase.
• Real value: volume, reference price and suitability for each user group.

Detailed Review of 5 Anti-Fungal Dandruff Shampoos with Medical-Grade Active Ingredients

Nizoral (Ketoconazole 1% and 2%): The No. 1 Choice Most Trusted by Dermatologists

Nizoral contains ketoconazole, an azole antifungal regarded as the gold standard in treating fungal dandruff and seborrhoeic dermatitis. Ketoconazole works by inhibiting ergosterol synthesis in the Malassezia cell membrane, preventing the fungus from growing and gradually killing it.

Numerous clinical studies have confirmed that ketoconazole 2% is more effective than selenium sulfide 1% and zinc pyrithione for moderate to severe fungal dandruff. Ketoconazole 1% also delivers good results with fewer side effects, making it better suited to long-term treatment. Beyond its antifungal action, some studies have noted that ketoconazole has a mild local DHT-inhibiting effect, which may offer an added benefit for people with both dandruff and a tendency towards hormonal hair loss. (Source DOI to be verified before publishing)

• Suitable for: Moderate to severe fungal dandruff, seborrhoeic dermatitis, and people who have seen no improvement with regular shampoo.
• Reference price: Nizoral 1% comes in 60ml to 100ml bottles, with prices varying by pharmacy. Nizoral 2% requires a doctor's prescription. (Prices subject to change)
• Pros: The active ingredient with the strongest clinical evidence in the group. Clear results from week 2 to 4 when used according to the regimen. Available as an over-the-counter 1% version and a prescription 2% version, allowing you to choose based on dandruff severity. Trusted and prescribed by many dermatologists in Vietnam.
• Limitations to be aware of: Nizoral 2% requires a prescription and should not be used daily, as continuous use may dry out the scalp. Some users report slightly dry, dull hair during the intensive treatment phase. The product has a medicinal smell and lacks the pleasant fragrance of regular shampoo.
• How to use correctly: During the treatment phase, use 2 to 3 times a week. Each time, apply evenly to a wet scalp, leave on for 3 to 5 minutes, then rinse thoroughly. Once dandruff is well controlled, switch to maintenance at once a week or twice a month.

Selsun Blue (Selenium Sulfide 1%): Fast Results, Best Value in the Group

Selsun Blue contains selenium sulfide 1%, an antifungal and antibacterial active ingredient that works differently from ketoconazole. Selenium sulfide inhibits fungal cell growth while slowing the rate of scalp cell turnover, helping to reduce flaking quickly.

Selenium sulfide at 2.5% (prescription version) is considered as effective as ketoconazole for moderate fungal dandruff. The over-the-counter 1% version is reasonably effective but must be used according to the correct regimen for good results.

• Suitable for: Mild to moderate fungal dandruff, very oily scalps, dark hair, and people looking for an affordable solution.
• Reference price: Varies by pharmacy, for 120ml to 200ml. (Prices subject to change)
• Pros: Quickly reduces flaking and itching, with clear improvement usually seen within the first 1 to 2 weeks when used correctly. Good value for the volume. Suitable for oily scalps as it contains no heavy moisturising ingredients. Easy to find at most pharmacies.
• Limitations to be aware of: Selenium sulfide has a rather distinctive smell that not everyone can tolerate. It may leave hair greasy or slightly alter hair colour if not rinsed thoroughly, especially with dyed or light-coloured hair. Not suitable for dry scalps as it may dry them out further.
• How to use correctly: Use twice a week for the first 4 weeks. Leave on the scalp for exactly 2 to 3 minutes, then rinse very thoroughly. Do not leave it on for more than 3 minutes, as selenium sulfide residue left on hair for too long may affect hair colour. Once dandruff is under control, use once a week for maintenance.

Head and Shoulders Clinical Strength (Selenium Sulfide 1%): Easy for Daily Use but Not the First Choice for Severe Dandruff

Head and Shoulders Clinical Strength is the brand's specialised fungal dandruff treatment, using selenium sulfide 1% like Selsun Blue but with added moisturising ingredients and an adjusted formula that makes it easier to use regularly.

The main difference from Selsun Blue is that this formula is designed for daily use, not just twice a week. However, its intensive treatment effect on genuine fungal dandruff is generally lower than Nizoral or Selsun when those are used correctly twice a week.

• Suitable for: Mild fungal dandruff, the maintenance phase after intensive treatment, and people who want a product that treats dandruff while being easy to use daily.
• Reference price: Varies by pharmacy, for 250ml to 400ml. (Prices subject to change)
• Pros: Pleasant fragrance and a texture similar to regular shampoo, making it easier to stick with long term. Less drying than Selsun thanks to added moisturising ingredients. Widely available at supermarkets and convenience stores nationwide.
• Limitations to be aware of: Lower intensive treatment efficacy than Nizoral and Selsun Blue for severe dandruff. Should not be the first choice for moderate to severe fungal dandruff. More expensive than Selsun without superior antifungal efficacy.
• How to use correctly: Can be used daily or every 2 to 3 days. Leave on the scalp for at least 1 to 2 minutes before rinsing. Best used in rotation or as a replacement after intensive treatment with Nizoral or Selsun.

Sebamed Anti-Dandruff (Piroctone Olamine + Climbazole): The Best Choice for Sensitive Scalps

Sebamed Anti-Dandruff combines piroctone olamine and climbazole, two antifungal actives generally considered gentler than ketoconazole or selenium sulfide, making it suitable for sensitive or easily irritated scalps.

Piroctone olamine inhibits Malassezia growth by binding to metals the fungus needs to function. Climbazole is an azole antifungal similar to ketoconazole but typically used at lower concentrations and less irritating. Sebamed has a pH of 5.5, close to the natural pH of a healthy scalp, helping to maintain the natural protective barrier better than many highly alkaline products.

• Suitable for: Mild to moderate fungal dandruff with a sensitive scalp, and people who cannot tolerate ketoconazole or selenium sulfide.
• Reference price: Varies by pharmacy, for 200ml. (Prices subject to change)
• Pros: Gentle, low-irritation formula. pH 5.5 protects the scalp's natural barrier. Few reports of dry hair or colour change. No medicinal smell and a more pleasant texture. Suitable for longer-term use than Nizoral 2% or Selsun.
• Limitations to be aware of: Intensive treatment efficacy for severe dandruff is generally not as strong as Nizoral or Selsun. Moderate to severe fungal dandruff may require a longer treatment period. Pricey relative to its antifungal efficacy compared with Nizoral.
• How to use correctly: Use 2 to 3 times a week. Leave on the scalp for 2 to 3 minutes. Ideal for long-term use in the maintenance phase or for people with sensitive scalps who need a gentler product.

Ducray Kelual DS (Ciclopirox + Zinc Pyrithione): Multi-Active Formula for Persistent Dandruff That Doesn't Respond to a Single Treatment

Ducray Kelual DS, from French dermocosmetic brand Ducray, combines two antifungal actives, ciclopirox olamine and zinc pyrithione, attacking Malassezia through two different mechanisms at once. This approach is better suited to persistent dandruff or cases that do not respond well to a single active ingredient.

Ciclopirox olamine inhibits the transport of metal ions essential to fungal cell function and also has antibacterial properties. Zinc pyrithione inhibits enzymes in fungal and bacterial cells and has been used to treat dandruff for decades with a well-documented safety profile.

• Suitable for: Moderate to severe fungal dandruff, persistent seborrhoeic dermatitis, and dandruff that does not respond well to a single active ingredient.
• Reference price: Varies by pharmacy, for 100ml to 150ml. (Prices subject to change)
• Pros: Two active ingredients provide a multi-mechanism effect, suitable for persistent dandruff. Ducray is trusted and prescribed by many dermatologists in Vietnam. The formula contains soothing ingredients that quickly reduce itching and redness. Good safety profile, suitable for longer-term use than selenium sulfide.
• Limitations to be aware of: The most expensive on the list, with a fairly small volume. Not available at every pharmacy; you often need to find a specialist pharmacy or order online. Distinct medicinal smell with no pleasant fragrance.
• How to use correctly: Use twice a week for the first 4 weeks for intensive treatment. Leave on the scalp for 3 to 5 minutes. Then switch to once a week for maintenance. Can be alternated with regular shampoo on the remaining days of the week.

Comprehensive Comparison of 5 Anti-Fungal Dandruff Shampoos

Criteria	Nizoral	Selsun Blue	H&S Clinical	Sebamed	Ducray Kelual DS
Active ingredient	Ketoconazole	Selenium sulfide 1%	Selenium sulfide 1%	Piroctone olamine + Climbazole	Ciclopirox + Zinc pyrithione
Suitable dandruff severity	Moderate to severe	Mild to moderate	Mild, maintenance	Mild to moderate	Moderate to severe, persistent
Clinical evidence	Strongest	Good	Moderate	Moderate	Good
Suitable for sensitive scalps	Moderate	Poor	Fair	Best	Fair
Effect on hair colour	Minimal	Possible	Minimal	None	None
Suitable for daily use?	Not recommended	Not recommended	Yes	Yes	Not recommended
Easy to buy in Vietnam	Easy	Easy	Very easy	Moderate	Harder
Reference Price	Varies by pharmacy	Varies by pharmacy	Varies by pharmacy	Varies by pharmacy	Varies by pharmacy

How to Use Anti-Fungal Dandruff Shampoo Correctly So You Don't Waste Money

Many people buy the right product but still see no results because they use it incorrectly. The most important step that most people skip is the contact time between the active ingredient and the scalp.

Antifungal actives need at least 3 to 5 minutes of direct contact with the scalp to act on Malassezia. If you apply and rinse straight away, the active ingredient has no time to work, and you are essentially just washing off surface flakes like a regular shampoo.

The correct method starts with thoroughly wetting your hair and scalp. Apply an adequate amount of shampoo directly to the scalp, not the lengths of your hair, because the problem lies in the scalp, not the hair strands. Massage gently to distribute the product evenly across the scalp, then leave it for exactly 3 to 5 minutes. While waiting, you can wash the lengths of your hair with regular shampoo if you wish. Then rinse thoroughly with warm water.

There is no need to lather a second time with anti-dandruff shampoo in the same wash, as it does not improve results and only dries the scalp further. On days you don't use anti-dandruff shampoo, use a mild regular shampoo to cleanse your hair as usual.

Treatment Phase vs Maintenance Phase: Why It Matters More Than Product Choice

One of the most common mistakes with anti-fungal dandruff shampoo is stopping as soon as the dandruff clears or, conversely, continuing at high intensity indefinitely without tapering down.

The intensive treatment phase usually lasts 4 to 8 weeks, with use 2 to 3 times a week. The goal is to bring Malassezia levels back to normal and reduce scalp inflammation.

The maintenance phase begins once dandruff is well controlled. At this point, reduce to once a week or twice a month, which is enough to prevent the fungus from regrowing without drying the scalp through overuse of antifungal actives.

If you stop completely once the dandruff clears, it usually returns within 4 to 8 weeks because Malassezia remains on the scalp, waiting for favourable conditions to grow again. Recurring dandruff does not mean the product is ineffective; it means maintenance was not done properly.

Dr. Chu Manh, Head of Hair Transplantation at CMEI International Clinic: "Many patients come to us with both severe dandruff and significant hair loss. After treating the fungal dandruff properly and controlling scalp inflammation, hair loss often improves considerably in this group. A healthy scalp environment is a crucial foundation that many people overlook when they focus solely on treating hair loss."

Common Mistakes with Anti-Fungal Dandruff Shampoo That Waste Money Without Results

• Rinsing immediately after applying is the most common mistake. Antifungal actives need sufficient contact time to work. Rinsing within 30 seconds to 1 minute is essentially no different from using regular shampoo.
• Using a strong product every day such as Nizoral 2% or Selsun does not clear dandruff faster; instead, it can dry out the scalp and weaken its natural protective barrier, paving the way for other problems.
• Stopping completely as soon as the dandruff clears without a maintenance phase is why dandruff keeps recurring in cycles, and why many people think the product is ineffective when they actually used it correctly.
• Self-diagnosing fungal dandruff when it may actually be scalp psoriasis, contact dermatitis or another scalp condition. These conditions look like dandruff but require completely different treatments.
• Not addressing contributing factors such as not washing your hair often enough, allowing excessive scalp oiliness, a diet high in sugar and refined carbohydrates, or prolonged stress. Antifungal shampoo only controls symptoms; it does not eliminate the factors that allow the fungus to flourish again.

Checklist for Treating Fungal Dandruff Correctly at Home

• Choose a product with a genuine antifungal active ingredient, not just a regular shampoo with added herbal extracts
• Leave the product on the scalp for 3 to 5 minutes before rinsing
• Use 2 to 3 times a week for the first 4 to 8 weeks; do not use strong products daily
• Use a mild regular shampoo on the remaining days of the week
• Rinse thoroughly, especially with Selsun, as selenium sulfide left on hair for long may affect colour
• Once dandruff is under control, reduce to once a week for maintenance; do not stop completely
• Limit foods high in sugar and refined carbohydrates, as they may promote fungal growth
• Do not share towels, combs or hats during treatment
• Stop and see a dermatologist if there is no improvement after 4 to 6 weeks of correct use

When Should You See a Dermatologist for Fungal Dandruff Instead of Self-Treating?

Antifungal shampoo is effective enough for most cases of ordinary dandruff, but certain situations call for a direct assessment by a doctor rather than continued self-treatment.

You should see a dermatologist if dandruff does not improve after 4 to 6 weeks of correct use with a product containing an antifungal active ingredient. At this point, you may need stronger prescription oral or topical medication, or the condition may not actually be ordinary fungal dandruff.

If the scalp shows signs of infection such as spreading redness, swelling, pus or sharp pain, it requires immediate medical treatment, not just a change of shampoo.

If dandruff is accompanied by heavy hair loss and progressively thinning hair, the hair follicles need a separate assessment, as chronic scalp inflammation can affect them long term.

If the scalp scales are thick, white with a silvery, waxy sheen rather than the usual thin white flakes, this is often scalp psoriasis, an autoimmune condition that requires completely different treatment from fungal dandruff.

The Link Between Persistent Fungal Dandruff and Hair Loss: What Few People Know

Fungal dandruff causes chronic inflammation on the scalp. Prolonged inflammation around the hair follicles can push them into the resting phase earlier than normal, leading to increased hair shedding. This is not permanent baldness but reactive hair loss due to inflammation, which usually recovers once dandruff is well controlled.

However, not all hair loss accompanying dandruff is caused by dandruff. Many people have both dandruff and hair loss due to two completely independent causes. The dandruff is simply masking a genuine hair loss problem that needs to be assessed separately.

So if your dandruff has been treated well but your hair continues to shed heavily or becomes progressively thinner, it is time for an in-depth hair follicle assessment rather than simply continuing dandruff treatment.

Comparing Anti-Dandruff Shampoo and Other Fungal Dandruff Treatments by Level of Intervention

Method	Main Effect	When is it suitable?	Not suitable when	Doctor required?
OTC antifungal shampoo	Controls Malassezia locally	Mild to moderate dandruff	Severe non-responsive dandruff, infection	Not required
Prescription topical antifungals	Higher concentration than OTC	Moderate to severe non-responsive dandruff	Pregnant women, certain underlying conditions	Yes
Prescription oral antifungals	Systemic treatment	Severe, widespread dandruff unresponsive to topical treatment	Liver disease, drug interactions	Required
Prescription topical corticosteroids	Rapidly reduces inflammation	Severe scalp inflammation, intense itching	Long-term use causes skin atrophy	Yes
Diet and lifestyle adjustments	Reduces factors that promote fungal growth	Complements all treatment methods	Not sufficient on its own	Not required

CMEI International Clinic

If you have fungal dandruff with heavy hair loss, or your dandruff is under control but your hair keeps thinning, it is time to have your hair follicles assessed separately. At CMEI International Clinic in Ho Chi Minh City, you can have a hair follicle analysis to determine whether scalp inflammation is affecting your follicles, whether they are still active, and the right course of action for your actual condition.

Dr. Truong Nguyen, Chief Medical & Technical Director, Aesthetic Surgery Expert at CMEI International Clinic: "In clinical practice, we often see patients who come in for hair loss, only to discover during examination that their scalp has chronic inflammation from untreated or improperly treated fungal dandruff. Fully resolving fungal dandruff is an essential step before assessing and treating hair loss, because if this step is skipped, hair loss treatment results will not last."

FAQ - Frequently Asked Questions About Anti-Fungal Dandruff Shampoo

Nizoral or Selsun Blue: which is more effective for fungal dandruff?

Nizoral, with ketoconazole, has stronger clinical evidence and is favoured by many dermatologists for moderate to severe dandruff. Selsun Blue works well for mild to moderate dandruff and has a price advantage. For mild fungal dandruff, both deliver good results when used correctly.

Can anti-dandruff shampoo be used daily?

Nizoral and Selsun should not be used daily, as they may dry out the scalp. The standard regimen is 2 to 3 times a week during the treatment phase. Head and Shoulders Clinical Strength and Sebamed are designed for more frequent use but have lower intensive treatment efficacy.

Why does dandruff return after stopping anti-dandruff shampoo?

Recurrence is normal because Malassezia remains on the scalp after treatment stops. A maintenance phase of once a week is needed after intensive treatment; you should not stop abruptly.

Is fungal dandruff contagious?

Malassezia lives naturally on almost everyone's scalp, so it is not contagious in the usual sense. However, sharing towels, combs or hats may encourage the fungus to flourish in people with sensitive scalps.

Can pregnant women use anti-fungal dandruff shampoo?

Consult your doctor first. Ketoconazole and selenium sulfide need careful evaluation during pregnancy. Sebamed with piroctone olamine is generally considered gentler, but you should still check with your doctor before using it during pregnancy.

How is fungal dandruff different from scalp psoriasis?

Fungal dandruff typically produces small, thin white flakes spread across the scalp and is linked to Malassezia. Scalp psoriasis usually produces thicker, silvery scales, often concentrated in well-defined patches, and is linked to the immune system. The two conditions require completely different treatments, so an accurate diagnosis by a doctor is essential.

Does diet affect fungal dandruff?

Yes. High intake of sugar and refined carbohydrates may promote Malassezia growth, as the fungus uses sugar as an energy source. A diet low in sugar, rich in leafy greens and with adequate zinc can help control dandruff from within, alongside topical treatment.

What should I do if my dandruff hasn't cleared after 4 to 6 weeks of correct shampoo use?

You should see a dermatologist. A lack of response after 4 to 6 weeks can have several causes: you may need a stronger prescription active, the condition may not actually be ordinary fungal dandruff, or a combination of treatments may be needed.

Does anti-dandruff shampoo affect dyed hair?

Selsun Blue with selenium sulfide may affect dyed hair colour, especially light-coloured hair, if not rinsed out completely. Nizoral and Sebamed are less likely to affect hair colour. If you have dyed hair, Nizoral 1% or Sebamed is the safer choice for your colour.

Do I need to use conditioner after anti-dandruff shampoo?

With Nizoral and Selsun, many people find their hair feels drier after washing and want to use conditioner. This is perfectly fine, but apply conditioner only to the lengths and ends of your hair, avoiding the scalp, as it may reduce the effectiveness of the antifungal active ingredient.

Conclusion

Anti-fungal dandruff shampoos with genuine antifungal actives such as ketoconazole, selenium sulfide, piroctone olamine or ciclopirox are an effective and safe solution for most cases of fungal dandruff when used correctly.

Nizoral là lựa chọn đầu tiên được nhiều bác sĩ tin dùng nhất cho gàu trung bình đến nặng. Selsun Blue là lựa chọn giá tốt và hiệu quả cho gàu nhẹ đến trung bình. Sebamed phù hợp nhất cho da đầu nhạy cảm. Ducray Kelual DS phù hợp cho gàu dai dẳng không đáp ứng với một hoạt chất đơn. Head and Shoulders Clinical Strength phù hợp nhất cho giai đoạn duy trì hoặc gàu rất nhẹ.

Quan trọng hơn bất kỳ sản phẩm nào là dùng đúng cách: để hoạt chất tiếp xúc da đầu đủ 3 đến 5 phút, dùng đúng tần suất, không dừng đột ngột khi gàu hết và kết hợp điều chỉnh lối sống để giảm yếu tố thúc đẩy gàu tái phát.

Nếu gàu không cải thiện sau 4 đến 6 tuần điều trị đúng, hoặc đi kèm rụng tóc và da đầu viêm nặng, đây là lúc cần gặp bác sĩ da liễu thay vì tiếp tục thử thêm sản phẩm.