Nizoral Shampoo (นิโซรัล แชมพู) — Antifungal Shampoo for Dandruff, Itchy Scalp, and Fungal Infections, First Action Reduces Fungal Build-Up for Up to 4 Weeks
💊 Active Ingredient: Ketoconazole 2%
⏱️ How to Use: Wet hair, apply to the scalp, massage until lathered, leave on for 3–5 minutes, then rinse off. Use twice weekly
🍽️ Conditions of Use: For external use only. Avoid contact with eyes, mouth, and other mucous membranes
📦 Pack: 100/200 mL bottle (concentrated shampoo)
⚡ Highlights: A well-known and trusted formula worldwide, effectively reduces dandruff and itching
🌡️ Storage: Store below 25°C. Protect from light and moisture. Keep out of reach of children
Shipping
Discreet shipping within Thailand — packaging does not identify the product. Customers can review shipping and return conditions per our store policy. Contact our team for any questions.
Product Description
Anti-dandruff and hair loss shampoo Nizoral Shampoo contains Ketoconazole 2%, an Imidazole antifungal that targets Malassezia fungi — the primary cause of dandruff and seborrheic dermatitis. Use twice weekly, leave lather on for 3-5 minutes.
📊 Key facts about Nizoral Shampoo
Ketoconazole 2% specifically targets Malassezia globosa by inhibiting Ergosterol synthesis, killing the fungus directly — unlike regular dandruff shampoos
Studies suggest Ketoconazole may reduce scalp inflammation linked to hair loss, making Nizoral a supplementary treatment for hereditary hair thinning
Available in 100ml and 200ml bottles, manufactured by Johnson & Johnson (Thailand)
🏭 By Johnson & Johnson (Thailand). Reg. No. 1A 213/37. Ketoconazole 2% w/v
⚠️ Avoid contact with eyes. External use only.
Medically reviewed by
Supatcheree A., Pharmacist | Sources: StatPearls, PubMed, MIMS, NHS
Last reviewed: 2026-04-18
About Nizoral Shampoo
What is Nizoral Shampoo?
Nizoral Shampoo contains Ketoconazole 2%, an Imidazole antifungal:
Mechanism: Inhibits 14α-demethylase, disrupting Ergosterol synthesis in Malassezia cell walls, killing the dandruff-causing fungus
Topical action: Minimal systemic absorption — safe with no whole-body side effects
Hair loss benefit: Studies suggest topical Ketoconazole 2% may have local anti-DHT properties, supplementing hereditary hair loss treatment
Anti-dandruff + hair loss support in one shampoo, used just twice weekly.
What does Nizoral Shampoo treat?
Nizoral Shampoo with Ketoconazole 2% treats:
Dandruff — Kills Malassezia fungi, reduces flaking, itching and scaling. Twice weekly for 2-4 weeks
Seborrheic Dermatitis — Reduces scalp redness, itching and thick scales
Stop and seek help if: Severe allergic reaction (widespread rash, breathing difficulty, facial swelling)
Does not cause drowsiness — external use with minimal absorption. Safe for daily life.
Contraindications / Precautions
Do not use: Allergy to Ketoconazole or other Azole antifungals
Precautions:
Avoid eye contact — rinse immediately if contact occurs
If using topical steroids on scalp, taper gradually before switching to Nizoral alone (prevent rebound)
Children under 12: consult a pharmacist
Pregnancy/breastfeeding: Minimal absorption — generally safe. Consult a pharmacist.
Nizoral vs regular dandruff shampoos
Nizoral vs regular dandruff shampoos:
Nizoral (Ketoconazole 2%): Directly kills Malassezia by inhibiting Ergosterol synthesis. Used just twice weekly. Also supports hair loss reduction
Regular (Zinc Pyrithione / Selenium Sulfide): Slows fungal growth and reduces flaking but doesn't kill fungi directly. Needs more frequent use
Summary: Nizoral for persistent dandruff that regular shampoos can't fix, or as a hair loss supplement.
How fast does Nizoral Shampoo work?
Nizoral starts working immediately on contact — Ketoconazole kills fungi during the 3-5 minute lather time.
Dandruff: Itching and flaking improve within 1-2 weeks. Full resolution in 2-4 weeks.
Hair loss: Improvements in hair density require 3-6 months of consistent use alongside other treatments.
Where to buy Nizoral Shampoo?
Nizoral Shampoo is available at pharmacies or online at Intimo Life. Two sizes: 100ml and 200ml. By Johnson & Johnson. Works as both anti-dandruff and hair loss support shampoo. Delivered discreetly.
⚠️ Disclaimer
The information on this page is for general informational purposes only and is not intended to replace professional medical advice, diagnosis, or treatment from a qualified doctor or pharmacist. If you have any questions about your symptoms or medication, always consult a doctor or pharmacist first.
Nizoral Shampoo with Ketoconazole 2% treats dandruff, seborrheic dermatitis, pityriasis versicolor, and is used as a supplementary hair loss shampoo.
Dandruff: twice weekly for 2-4 weeks, then weekly for prevention. Pityriasis versicolor: daily for 5 days.
Studies suggest Ketoconazole 2% may reduce scalp inflammation and have local anti-DHT effects. Used as a supplement alongside Minoxidil/Finasteride, not as standalone treatment.
Leave lather on for 3-5 minutes before rinsing. This gives Ketoconazole time to work. Rinsing too quickly reduces effectiveness.
Apply conditioner on hair ends only after rinsing Nizoral — avoid scalp. Alternatively, pre-wash with regular shampoo, then use Nizoral second.
Consult a pharmacist for children under 12. No strict contraindication but limited data. Teens can use adult dosing.
Yes — use Nizoral 2-3 times weekly, apply Minoxidil on non-wash days or after hair is completely dry.
Yes — apply to affected body area, leave 5 minutes, rinse. Once daily for 5 days. Ketoconazole kills pityriasis-causing Malassezia.
Minimal absorption — generally safe. Consult a pharmacist before use during pregnancy or breastfeeding.
Store below 30°C, away from sunlight and heat. Close cap tightly. Do not use expired product.
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