Regaine Extra Strength 5% Foam (Minoxidil)

What Is Minoxidil 5% Foam for Hair Loss?

Regaine Extra Strength 5% Foam is one of the most widely recognised treatments for male pattern hair loss available without a prescription in the UK. It contains minoxidil 5% foam as its active ingredient — a topical treatment applied directly to the scalp to help slow hair loss and stimulate regrowth in men experiencing hereditary thinning. If you've noticed your hairline receding or a thinning crown and you're wondering what your options are, this could be a practical first step worth exploring. You can browse our full range of hair care products to find the right solution for your needs.

Male pattern baldness — clinically known as androgenetic alopecia — affects a significant proportion of men in the UK. According to the NHS, it's the most common type of hair loss and is largely driven by genetics and the hormone dihydrotestosterone (DHT). Regaine Extra Strength 5% Foam is licensed in the UK as a pharmacy medicine (P) for men aged 18 to 65 with this specific type of hair loss.

How Does Regaine Extra Strength 5% Foam Work?

The exact mechanism by which minoxidil promotes hair growth isn't fully understood, but research points to several key actions at the follicle level:

• It acts as a vasodilator, widening blood vessels in the scalp to improve blood flow and nutrient delivery to hair follicles.
• It prolongs the anagen (active growth) phase of the hair cycle, giving follicles more time to produce thicker, longer strands.
• It may help to reactivate follicles that have entered a dormant or miniaturised state due to DHT sensitivity.
• The foam formulation is alcohol-free compared to some liquid versions, which can reduce scalp dryness and make application easier.

Results aren't instant. Most men need to use the product consistently for at least 16 weeks before noticing visible improvement. Some initial shedding in the first few weeks is normal and doesn't mean the treatment isn't working — it's simply the follicle cycle resetting.

Who Should Use Regaine Extra Strength 5% Foam?

This product is specifically designed for men with hereditary hair loss. It works best when hair loss is at an early to moderate stage — once follicles are completely inactive, regrowth becomes less likely. So the sooner you start, the better your chances of a meaningful response.

It may be suitable for you if:

• You are a man aged between 18 and 65.
• You have a family history of hair loss (androgenetic alopecia).
• Your hair loss is gradual and confined to the top of the scalp or hairline.
• You have not experienced sudden or patchy hair loss, which may indicate a different underlying cause.

It is not intended for women. If you are a woman experiencing hair loss, our female hair loss collection includes products formulated specifically for that purpose.

How Does Regaine Extra Strength Compare to the 2% Solution?

Is Regaine Extra Strength 5% Foam Safe to Store and Use Long-Term?

The canister is pressurised, so storage conditions matter. Keep it below 25°C, away from direct sunlight, heat sources, and open flames. Never puncture or incinerate the canister, even when empty. The foam should not be applied near a naked flame or while smoking.

Long-term use is generally considered safe when used as directed, but it's worth noting that if you stop using minoxidil 5% foam, any hair regrown during treatment is likely to be lost within a few months. This is a maintenance treatment, not a cure. If you have any underlying health conditions — particularly cardiovascular issues — speak to your GP or pharmacist before starting.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

What Is Regaine Extra Strength 5% Foam and What Is It Used For?

Regaine Extra Strength 5% Foam is a topical hair loss treatment containing minoxidil 5% w/w as its active ingredient. It is used to treat androgenetic alopecia — commonly known as male pattern baldness — in men aged 18 to 65. The NHS describes male pattern baldness as the most common cause of hair loss in men, typically presenting as a receding hairline or thinning at the crown. This product is applied directly to the scalp twice daily to help slow further hair loss and, in many cases, encourage regrowth of thinning hair.

What Do You Need to Know Before Using Regaine Extra Strength 5% Foam?

Before you start using this product, it's important to check whether it's appropriate for you. Do not use Regaine Extra Strength 5% Foam if any of the following apply:

• You are a woman or under 18 years of age.
• You have no family history of hair loss, or your hair loss is sudden, patchy, or unexplained.
• You have a known allergy to minoxidil or any other ingredient in the foam.
• You have a scalp condition such as psoriasis, sunburn, or broken skin in the area of application.
• You have a history of heart disease, low blood pressure, or are taking antihypertensive medication — seek medical advice first.
• You are over 65 years of age, as the product has not been studied in this age group.

Regarding drug interactions, be aware of the following:

• Topical corticosteroids or other products that increase skin absorption may enhance minoxidil uptake and increase the risk of side effects.
• Using other topical scalp treatments at the same time may affect how well the foam is absorbed — check with your pharmacist.
• Systemic absorption is low with topical use, but caution is advised if you are taking medicines for blood pressure.

How Should You Use Regaine Extra Strength 5% Foam?

Correct application is key to getting the most from this treatment. Follow these steps each time you apply:

1. Ensure your scalp and hair are completely dry before applying.
2. Hold the canister upside down and dispense half a capful of foam onto your fingers or directly onto the scalp.
3. Part your hair to expose the thinning area and apply the foam directly to the scalp — not the hair itself.
4. Spread gently with your fingertips across the affected area.
5. Wash your hands thoroughly with soap and water immediately after application.
6. Allow the foam to dry naturally before styling your hair or going to bed.

What Are the Possible Side Effects of Regaine Extra Strength 5% Foam?

Like all medicines, Regaine Extra Strength 5% Foam can cause side effects, although not everyone experiences them. If you're concerned about any reaction, stop use and speak to your pharmacist or GP. You might also find it helpful to explore our skin care range if you're managing scalp sensitivity alongside your hair loss treatment.

Common side effects (may affect up to 1 in 10 people):

• Scalp itching or irritation
• Scalp dryness or flaking
• Temporary increased hair shedding in the first 2–6 weeks of use
• Local skin redness at the application site

Less common side effects (may affect up to 1 in 100 people):

• Unwanted facial or body hair growth (hypertrichosis)
• Headache or dizziness
• Rapid or irregular heartbeat (palpitations)
• Swelling of the hands or feet (oedema)
• Allergic skin reactions such as rash or hives

Stop using the product and seek urgent medical attention if you experience chest pain, significant swelling, or difficulty breathing. These may indicate systemic absorption of minoxidil, which is rare but serious.

How Should You Store Regaine Extra Strength 5% Foam?

Proper storage keeps the product safe and effective throughout its shelf life. If you're managing several health products at home, our men's health collection has further guidance on products that complement your routine.

• Store below 25°C in a cool, dry place away from direct sunlight.
• Keep away from heat sources, open flames, and sparks — the canister is pressurised and flammable.
• Do not puncture, crush, or incinerate the canister, even when empty.
• Keep out of reach and sight of children.
• Do not use after the expiry date printed on the canister.
• Do not store in a bathroom or near a sink where humidity is high.