CategoryDetails
Type of DrugTopical vasodilator
Health Conditions Prescribed ForAndrogenetic alopecia (male pattern baldness)
Active IngredientMinoxidil
Brand NamesRegaine, Kirkland, and Generic Minoxidil
Available Strengths2% and 5% solutions
Available AsLiquid solution, foam
Possible Side EffectsScalp irritation, itching, dryness, excessive hair growth in nearby areas
ManufacturersJohnson & Johnson, Perrigo, and other pharmaceutical companies

What is Minoxidil Foam?

Minoxidil Foam is a clinically proven treatment for male pattern hair loss (androgenetic alopecia). It was developed as an alternative to lotion, with a quick-drying, propylene glycol–free formula to reduce irritation. The foam absorbs easily and leaves little residue, making it convenient for daily use.

What is Minoxidil Foam Used For?

Male pattern baldness: Helps slow hair loss and promotes regrowth at the crown and top of the scalp.
Thinning hair: Supports improved hair density.

How Does Minoxidil Foam Work?

Like the lotion, the foam widens scalp blood vessels, increasing circulation to hair follicles. This stimulates dormant follicles, prolongs the growth phase, and encourages thicker regrowth.

When to Consider Minoxidil Foam

Men aged 18–49 years (licensed age group for foam).
Those who prefer a cleaner, less greasy formula.
Men who experienced irritation with lotion.

Who Should Avoid Minoxidil Foam?

Men under 18 or over 49 (outside licensed range).
Men with scalp irritation, eczema, or wounds.
Men allergic to Minoxidil or foam ingredients.

Can You Buy Minoxidil Foam Over the Counter?

Yes — Minoxidil Foam for men is available OTC in the UK without prescription.

  • Part hair and apply half a capful of foam to thinning areas.
  • Massage gently into the scalp.
  • Apply twice daily (morning & evening).
  • Wash hands thoroughly after use.
  • Active: Minoxidil.
  • Inactive: Butylated Hydroxytoluene, Cetyl Alcohol, Stearyl Alcohol, Propellant gases.


Note: Ingredients may vary by brand - Always read the Patient Information Leaflet (PIL) provided with the product before starting treatment.

 

Common

  • Scalp irritation, itching, or dryness.
  • Flaking.
  • Unwanted hair growth on adjacent skin.

Rare/Severe

  • Chest pain.
  • Dizziness.
  • Severe allergic reaction.
  • Mild scalp irritation is common at the start and often settles with continued use. If irritation persists or worsens, speak to your pharmacist or GP.


Stop using Minoxidil and seek urgent medical advice if you develop severe reactions such as chest pain, fainting, rapid heartbeat, swelling of the face or throat, or difficulty breathing.

Always read the Patient Information Leaflet (PIL) provided with the product before starting treatment.

  • What is Regaine Foam?

    Regaine Foam is a clinically proven treatment for hereditary hair loss in men. It contains 5% minoxidil, an active ingredient that helps to slow down hair loss and encourage new growth. The foam formulation is designed to be quick drying and easy to apply.

  • Who can use Regaine Foam?

    It is suitable for men aged between 18 and 49 years who are experiencing hereditary hair thinning or baldness. It is not recommended for use by women, children, or men over the age of 49.

  • How do I use Regaine Foam?

    Apply half a capful of foam directly to the affected areas of the scalp twice a day, once in the morning and once in the evening. Massage it in gently with your fingers and wash your hands thoroughly afterwards.

  • How long does it take to see results?

    Results vary, but most men start to notice an improvement after around 16 weeks of consistent use. To maintain any new hair growth, treatment must be continued.

  • What happens if I stop using it?

    If treatment is stopped, hair loss will usually resume within a few months, and any regrown hair is likely to be lost.

  • What side effects can Regaine Foam cause?

    The most common side effects include itching, redness or dryness of the scalp. Some men may notice unwanted hair growth on the face or other parts of the body. Rarely, dizziness or a rapid heartbeat may occur. If you experience severe or unexpected side effects, stop using the foam and speak to your GP or NHS111 as appropriate. 

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