Ketoconazole Shampoo
Shampoo · 2%
- Calms flaking and irritation
- Supports a healthier scalp
- Two to three times weekly
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Why use Ketoconazole Shampoo?
Ketoconazole reduces the yeast that drives dandruff and seborrheic dermatitis, calming the inflammation that comes with it. In hair protocols it plays a supporting role — an inflamed scalp undermines everything else you are doing, and settling it helps the rest of the routine work.
What to expect
- Two to three times weekly — More often dries the scalp without added benefit.
- Leave it on — Three to five minutes before rinsing.
- A supporting role — It calms the scalp rather than regrowing hair.
- Watch coloured hair — Test a small section if your hair is chemically treated.
How it works
Online consultation
Answer a few health questions — a licensed provider reviews online. No waiting rooms.
Prescription approved
Once approved, your medication ships discreetly to your door.
Feel the difference
Physician-guided support and check-ins keep results on track.
Dosing, safety & what's inside
Apply to wet hair, lather and leave in place for three to five minutes, then rinse; use two to three times weekly
Prescription ketoconazole shampoo is FDA approved for tinea versicolor, and the 1 percent strength is approved for dandruff. Using it for hair loss is off-label.
Tell your care team straight away if you get trouble breathing or throat swelling, swelling of your face or lips, hives or a widespread rash, severe burning or blistering of the scalp, or eye pain after contact.
Common side effects
- itching
- a reaction where you applied it
- dry skin
- a change in hair color
- a change in hair texture
- a burning feeling on the skin
Rare but serious
- severe allergic reactions including anaphylaxis
- swelling under the skin
- contact dermatitis
- hives
- hair loss
Do not take this if you are allergic to ketoconazole. Do not use it on broken or inflamed scalp.
This is not a complete list of side effects. Message your care team about any symptom that worries you.
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Common questions
How often should I use it?
Two to three times a week is typical. Daily use tends to dry the scalp without adding benefit.
How long do I leave it on?
Three to five minutes before rinsing. Rinsing immediately does not give the active time to work.
Does it regrow hair?
It is not a hair-growth treatment. It reduces scalp inflammation, which supports the treatments that are.
Can I use it with coloured hair?
Usually, though it can occasionally affect chemically treated or coloured hair. Test on a small section first if that is a concern.
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Built by a health team that's actually on your side
Prof Brian Kennedy, PhD
Globally recognized aging biologist and former CEO of the Buck Institute for Research on Aging, renowned for pioneering research on sirtuins, mTOR, and healthy aging.
Matt Kaeberlein
World-leading biogerontologist and Founding Director of the Healthy Aging & Longevity Research Institute, celebrated for uncovering the biological mechanisms of aging.
Rhonda Collins, FNP-C
Board-certified Family Nurse Practitioner with 15+ years of clinical experience, specializing in preventative wellness and biomarker-driven personalized care.