Minoxidil for Hair Loss: How It Works, Strengths and Application

Yes. Minoxidil is the only topical hair loss treatment licensed in the UK with strong randomised trial evidence. In clinical studies, roughly 60 percent of men and 50 percent of women see moderate or better regrowth at 12 months. It works by extending the growth phase of the hair cycle and increasing follicle size, regardless of whether DHT is involved.

For men, yes: 5 percent strength produces approximately 45 percent more regrowth than 2 percent in head to head trials. For women, both strengths have similar efficacy but 5 percent has a higher rate of unwanted facial hair growth, so 2 percent is often the starting point. Topical minoxidil 10 percent is also available for men who plateau on 5 percent.

A short shedding phase in weeks 2 to 8 is common and a sign the medication is working: it pushes follicles out of resting phase into a new growth cycle, which means existing hairs in the resting phase fall out first. Shedding usually peaks around week 6 and subsides by week 12. If shedding is severe or continues past 4 months, speak to the prescriber.

Both deliver the same active ingredient. Foam is alcohol free, dries faster, and is less likely to irritate sensitive scalps. Liquid spreads more easily through long hair and tends to be cheaper. Efficacy is identical in clinical trials. Choose by what fits your routine and scalp tolerance.

No. Minoxidil only works while in use. Stopping reverses regrowth within 3 to 6 months because the underlying cause (pattern hair loss) is unchanged. To maintain results, use it continuously. Some men switch to oral low dose minoxidil at this stage for convenience.

Reduced shedding by month 3, visible regrowth between 4 and 6 months, full effect by 12 months. Apply twice daily as directed; missed doses are the most common reason for poor response. Pair with microneedling once a week for around 25 percent better regrowth in published studies.