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Hair growth · TREATMENT GUIDE

Minoxidil treatment guide

Everything you need to know about minoxidil for hair growth: how to use it, what to expect, managing side effects, and when to contact your doctor.

2 min read · Reviewed by Dr. Alejandro Infante
TREATMENT GUIDE · Hair growth

Minoxidil treatment guide

Everything you need to know about minoxidil for hair growth: how to use it, what to expect, managing side effects, and when to contact your doctor.

READ TIME
2 min read
PATHWAY
Topical Minoxidil
DOSE RANGE
1 mL → Continue twice daily

This guide does not replace the package leaflet or your doctor's assessment.

1 mL 5%Twice daily
OngoingReport any mood change, breast tenderness or sexual side effects (finasteride): most resolve on stopping, and your doctor can adjust the plan.

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Sent to the pharmacy you choose; each pharmacy decides whether it can dispense it.

On this page
01

How to use

  1. Topical application

    Apply 1 ml of the 5% solution or foam to the scalp twice daily. Part your hair in the area of thinning and apply directly to the scalp, not the hair. Wash your hands after each application. The foam formulation is preferred if you have sensitive skin.

  2. Consistency is essential

    Apply twice daily, every day, at roughly 12-hour intervals. Missing applications for several days can reduce effectiveness.

  3. Oral minoxidil

    If your doctor has prescribed oral minoxidil (low-dose tablets), take as directed: usually once daily with food. Your doctor will monitor your blood pressure.

Monitoring

First 3 months. Take a monthly photo of your scalp in the same light and angle: it is the most reliable way to judge change. A temporary increase in shedding in the first 4 to 8 weeks is expected with minoxidil and usually signals follicle turnover, not failure.

Ongoing. Report any mood change, breast tenderness or sexual side effects (finasteride): most resolve on stopping, and your doctor can adjust the plan. Report scalp irritation, unwanted facial hair growth, dizziness or palpitations (minoxidil). Results reverse within months of stopping: treatment is long-term maintenance, so review the plan with your doctor at least yearly.

02

Treatment pathway

  1. 1 mLTwice daily
  2. Continue twice daily2-6 weeks
  3. Continue twice daily3-6 months
  4. Continue twice daily6-12 months

Consistency beats strength: two applications daily, every day.

See the full decision pathway

Your minoxidil pathway

  1. Weeks 1-8

    • Apply to a dry scalp twice daily

      Directly on the thinning areas, not the hair. Wash hands after. Expect a temporary shedding phase: it signals follicle turnover.

  2. At 4 months, do your monthly photos show new fine hairs or a denser part line?

    Yes

    Continue twice daily

    Peak results are judged around 12 months; stopping reverses gains within 3-4 months.

    No

    Doctor review

    Your doctor may adjust strength, switch formulation or add a DHT blocker.

    Weeks 1-8

Consistency beats strength: two applications daily, every day.

03

Dose schedule

Dose schedule
DoseWhenNote
1 mL 5%Twice dailyApply to scalp at 12-hour intervals.
Continue twice daily2-6 weeksTemporary shedding is a positive sign.
Continue twice daily3-6 monthsNew hair growth becomes visible.
Continue twice daily6-12 monthsMaximum results.
04

How it compares

Hair-loss treatments compared
Hair-loss treatments comparedHow it worksBest suited forDosingFirst visible results
Finasteride 1 mgBlocks conversion of testosterone to DHT (5-alpha-reductase inhibitor)Men with pattern hair loss at the crown and mid-scalpOne tablet daily3 to 6 months
Minoxidil (topical)Stimulates follicles and prolongs the growth phaseMen and women; works on most pattern-loss areasApplied to dry scalp twice daily8 to 16 weeks
Female combination planTopical stimulation, with anti-androgen options a doctor may addWomen with pattern thinning or a widening partAs prescribed in your plan12 to 24 weeks

Combining a DHT blocker with topical minoxidil outperforms either alone in men; your doctor will advise the right combination.

05

Side effects

Scalp irritation

Mild dryness, itching, or redness at the application site is common. Using the foam formulation instead of the solution can help.

Oral minoxidil side effects

Low-dose oral minoxidil may cause mild fluid retention, increased heart rate, or headache. Your doctor will monitor these. Report any chest pain, dizziness, or rapid heartbeat.

Unwanted hair growth

Some patients may notice fine hair growth on the face or hands. This is usually mild and reversible.

06

Do not use if

  • Allergy to minoxidil or ingredients such as propylene glycol
  • Scalp conditions that break the skin barrier (infection, psoriasis flare, sunburn) until healed
  • Sudden, patchy or unexplained hair loss: get a diagnosis first
  • Uncontrolled heart disease or blood-pressure problems: discuss with your doctor first
  • Pregnancy or breastfeeding

Keep the product away from pets: even small licked amounts are toxic to cats and dogs.

07

When to contact your doctor

  • Persistent scalp irritation or allergic reaction
  • Rapid heartbeat, chest pain, or dizziness (oral form)
  • No visible improvement after 12 months of consistent use
08

Storage

Store at room temperature below 25°C. Keep the cap tightly closed. Do not use if the solution has changed colour or has particles.

09

What to expect

Minoxidil is a vasodilator that increases blood flow to hair follicles, stimulating growth. It works best as a long-term treatment: stopping will cause hair loss to return within 3-6 months. Combination with finasteride (the gold standard) gives better results than either alone. Results vary by patient; consistency for 6-12 months is needed to evaluate effectiveness.

10

Sources

Hair growthThis guide is for patients whose doctor has already prescribed Minoxidil.Questions about your treatment? Message your doctor from your account. Not on treatment yet? An EU-licensed doctor assesses your case and decides whether any treatment is appropriate.Start consultationThis guide does not replace the package leaflet or your doctor's assessment.
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FAQS

Common questions

Minoxidil treatment guide3 questions
Who reviews the guides?
Each guide is reviewed by an EU-licensed doctor. It is based on the official product information, cited at the end of each guide.
No. They support your treatment, and your doctor's instructions always come first.
Yes. English, Spanish, German, Dutch, Italian, French, Portuguese and Chinese.

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The clinical information on this page was reviewed by: Dr. Alejandro Infante, General medicine, on 26 August 2026. Barcelona College of Physicians, no. 080869277 View profile

If the doctor does not approve treatment, we refund the full amount. Every consultation is fully refundable. How refunds work