Ketoconazole
Nizoral Shampoo
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
การจัดส่งสินค้า
จัดส่งสินค้าอย่างเป็นส่วนตัวภายในประเทศไทย โดยบรรจุภัณฑ์ไม่ระบุรายละเอียดสินค้า ลูกค้าสามารถตรวจสอบเงื่อนไขการจัดส่งและการคืนสินค้าได้ตามนโยบายของร้าน หากมีข้อสงสัยสามารถติดต่อทีมงานเพื่อขอข้อมูลเพิ่มเติม
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.
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
- Pityriasis versicolor — Apply daily for 5 days, leave 5 minutes
- Malassezia Folliculitis — Apply to affected area 3-5 minutes (pharmacist discretion)
- Hereditary hair loss — Used alongside Minoxidil/Finasteride to reduce scalp inflammation
Both treats and prevents dandruff recurrence. Consult a pharmacist if no improvement in 4 weeks.
How to use Nizoral Shampoo
For dandruff: Twice weekly for 2-4 weeks (treatment), then weekly or biweekly (prevention).
For pityriasis versicolor: Daily for 5 days.
How to use:
- Wet hair, can pre-wash with regular shampoo
- Apply Nizoral, lather
- Leave on for 3-5 minutes for Ketoconazole to work
- Rinse thoroughly
- Conditioner on ends only, avoid scalp
Important: Avoid eye contact. External use only.
Side effects of Nizoral Shampoo
Occasional: Scalp itching/burning (temporary), dry or oily hair texture change, mild scalp redness
Very rare: Contact dermatitis, urticaria
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.
References
- StatPearls — Ketoconazole. NCBI Bookshelf. Updated 2024.
- Pierard-Franchimont C, et al. "Ketoconazole shampoo: effect of long-term use in androgenic alopecia." Dermatology. 1998.
- StatPearls — Seborrheic Dermatitis. NCBI Bookshelf. Updated 2024.
- Nizoral Shampoo — MIMS Thailand.
- Ketoconazole Topical — Drugs.com.
- Ketoconazole — DrugBank Online.
- Ketoconazole — NHS UK. Updated 2024.
- Faergemann J. "Management of seborrheic dermatitis and pityriasis versicolor." Am J Clin Dermatol. 2000.
Frequently Asked Questions
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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