Minoxidil was originally developed as a blood pressure medicine. Doctors noticed that it also stimulated hair growth, and today topical minoxidil is one of the most widely used treatments for hereditary hair loss in both men and women.
How does minoxidil work?
Minoxidil widens the small blood vessels around the hair follicles and extends the growth (anagen) phase of the hair. Thin, weak hairs can become thicker and the rate of hair loss can slow down.
Forms and use
- Topical solution or foam – usually 5% for men and 2–5% for women, applied to a dry scalp once or twice a day.
- Low-dose oral minoxidil – sometimes prescribed by doctors; it must only be used under medical supervision.
When will I see results?
- In the first 2–8 weeks, some temporary shedding is normal – weak hairs make room for new ones.
- Visible improvement usually appears after 3–6 months.
- Results must be maintained with continued use; if you stop, the effect gradually disappears.
Possible side effects
Scalp itching, dryness or redness, and occasionally unwanted facial hair. Minoxidil should not be used during pregnancy or breastfeeding, and people with heart conditions should consult their doctor first.
Minoxidil and hair transplant
Minoxidil does not create new follicles in completely bald areas, but it can protect existing hair. Many doctors recommend it after a hair transplant to support the native hair around the transplanted area. Your surgeon will tell you when to start using it again after the procedure.
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