Description
Ketoconazole 2% Shampoo (120ml, Dandrazol brand)
Ketoconazole 2% antifungal shampoo. Used 2 to 3 times per week to treat dandruff and seborrheic dermatitis, and increasingly used as an adjunct to hair loss treatment for its topical anti-DHT and anti-inflammatory effect on the scalp. Prescription only at this 120ml pack size, prescribed and dispensed by a GPhC registered UK partner pharmacy.
How ketoconazole shampoo helps hair loss
Ketoconazole is an antifungal medicine. When applied to the scalp:
It clears the Malassezia yeast overgrowth that causes dandruff and scalp inflammation
It has a mild topical anti-androgen effect (reduces local DHT activity in the scalp)
Reducing scalp inflammation improves the environment for hair follicles
The evidence base for ketoconazole as a hair loss adjunct is modest but consistent: it should not replace finasteride or minoxidil, but it complements them well for men with dandruff, seborrheic dermatitis, or an inflamed scalp.
How to use
Wet your hair and scalp thoroughly in the shower
Apply a small amount of shampoo (a 10p coin is enough) to your scalp
Massage into the scalp for 1 minute, then leave in place for 3 to 5 minutes before rinsing. This contact time is what makes it work
Rinse thoroughly
Follow with a normal conditioner if your hair needs it
Use 2 to 3 times per week for hair loss support and for active dandruff. Once symptoms are controlled, drop to once or twice weekly for maintenance. On non-ketoconazole days, use any gentle shampoo.
What to expect
1 to 2 weeks: dandruff and itch usually reduce noticeably
4 to 8 weeks: full dandruff control if that's the goal
3 to 6 months: modest hair loss benefit if used as an adjunct alongside finasteride or minoxidil
Ketoconazole shampoo is not a standalone hair loss treatment. It's an adjunct.
Side effects
Ketoconazole 2% shampoo is well tolerated. Systemic absorption from shampoo use is negligible because contact time is short and most of the product is rinsed off.
Common (roughly 1 in 10)
Dry hair or scalp with regular use (offset by a good conditioner on non-shampoo days)
Mild scalp itching, especially in the first 2 weeks of use
Uncommon (roughly 1 in 100)
Changes to hair colour or texture with prolonged use (usually reversible on stopping)
Contact dermatitis at the hairline
Rare (less than 1 in 1,000)
Localised allergic reaction (rash, hives at the hairline)
When to seek urgent medical advice
Signs of allergic reaction: facial or lip swelling, difficulty breathing, widespread rash
Severe scalp burning or blistering
Who should not use ketoconazole shampoo
Known allergy to ketoconazole or other imidazole antifungals
Broken or infected skin on the scalp (wait for it to heal first)
Not suitable during pregnancy or breastfeeding without prescriber review
Combining with other hair loss treatments
Ketoconazole shampoo works well alongside:
Topical minoxidil: ideal. Wash with ketoconazole 2 to 3 times per week, apply minoxidil daily to a dry scalp between shampoo days. Wait at least 4 hours after minoxidil before shampooing
Oral finasteride or dutasteride: works independently. No timing conflict
Topical finasteride or dutasteride: yes, same rule as minoxidil (shampoo separately, wait 4 hours)
Ketoconazole 2% vs Nizoral (1% OTC)
Nizoral is the common UK over-the-counter brand at 1% strength (available in supermarkets). The 2% strength has twice the ketoconazole concentration, faster and more thorough dandruff control, and a more robust anti-DHT effect at the scalp. In this 120ml pack it is a prescription only medicine. If OTC 1% Nizoral hasn't worked well enough, 2% is the natural step up.
Prescription and dispensing
This 120ml pack of ketoconazole 2% shampoo is a prescription only medicine in the UK. A UK prescriber reviews the short online health questionnaire at checkout and the shampoo is dispensed by a GPhC registered UK partner pharmacy. Free UK delivery.
Frequently asked questions
How does ketoconazole shampoo help with hair loss?+
Ketoconazole has antifungal and anti-androgenic properties that reduce scalp inflammation and may block DHT at the follicle level.
How often should I use ketoconazole shampoo?+
Use 2-3 times per week, leaving on the scalp for 3-5 minutes before rinsing.
Can I use ketoconazole shampoo with minoxidil or finasteride?+
Yes, ketoconazole shampoo is often used alongside other hair loss treatments.
Can I return this item?+
Prescription and custom-compounded medicines cannot be returned once dispensed under UK pharmacy regulations. Non-prescription items may be returned within 14 days if unused and in their original packaging. See our returns policy at hairrepairclinic.co.uk/returns-policy for full details.
How long should I leave ketoconazole shampoo on my scalp?+
3 to 5 minutes of contact time before rinsing. This contact time is what makes it work. Applying and rinsing straight off gives you almost no benefit.
Will ketoconazole shampoo regrow hair on its own?+
No. It is an adjunct, not a standalone hair loss treatment. It works alongside finasteride, dutasteride or minoxidil by reducing scalp inflammation and mild topical DHT activity. Do not expect regrowth from shampoo alone.
What is the difference between 2% ketoconazole and 1% Nizoral?+
2% is twice the ketoconazole concentration of the 1% Nizoral you can buy in supermarkets. 2% clears dandruff faster, produces a more robust anti-DHT effect at the scalp, and is used 2 to 3 times weekly. In this 120ml pack it is a prescription only medicine in the UK, not general sale.
Can I use ketoconazole shampoo every day?+
Not usually needed and may cause dryness. 2 to 3 times per week is the standard hair-loss adjunct dose. Once symptoms are controlled, drop to once or twice weekly for maintenance.
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