Does minoxidil work? Myths and facts

Minoxidil myths and facts

Myth	Fact
Minoxidil works for any hair loss	It’s for pattern hair loss. If the cause is low iron, a thyroid problem, stress or a scalp condition, it won’t fix it.
It works by pushing more blood to the roots	It was first a blood pressure medicine, but how it grows hair isn’t fully understood. It seems to lengthen the growing phase and enlarge shrunken follicles.
Shedding means it’s making things worse	Extra shedding in the first weeks is common and usually settles as new hairs push out old ones.
You’ll see results in a few weeks	It takes at least four to six months, and up to a year, to judge.
Once your hair is back, you can stop	The hair it keeps or regrows is usually lost within a few months of stopping.
It’s from the pharmacy, so it’s harmless	It can irritate the scalp, cause unwanted facial hair, and isn’t suitable for everyone.
Oral minoxidil is just a stronger version	It’s a prescription medicine in the UK, with different side effects, and needs a doctor to monitor it.

Does minoxidil work?

For male and female pattern hair loss, yes, for many people. It has more evidence behind it than any other treatment you can buy without a prescription. Some people regrow noticeable hair, many keep what they have, and some see little change. It tends to do more at the crown than at a receding hairline, and more when thinning is caught early. Female pattern hair loss · Male pattern hair loss.

It isn’t a fix for every kind of thinning. Shedding from telogen effluvium, low iron or a thyroid problem needs the cause putting right, and hair lost to scarring alopecia can’t regrow.

Why am I shedding on minoxidil?

Many people shed more hair two to eight weeks after starting. Minoxidil nudges resting hairs into a new growth phase, and the old hairs fall out to make way. It usually settles within a couple of months. Shedding that carries on, or comes with a sore or flaky scalp, is worth having checked.

Is minoxidil safe? The side effects

• An itchy, red or flaky scalp, the most common side effect. It can also flare eczema, psoriasis or seborrhoeic dermatitis.
• Unwanted hair on the face or body, more common in women and with oral minoxidil.
• Dizziness, a fast heartbeat or swollen ankles, rare with the scalp form but more likely with tablets.
• Not suitable in pregnancy or breastfeeding, and worth checking with your GP if you have a heart condition or low blood pressure.

An inflamed or flaky scalp is more likely to react, which is why I look at the scalp first. Itchy scalp.

What about oral minoxidil?

Low-dose minoxidil tablets are increasingly prescribed for hair loss. In the UK it’s an off-label prescription, so it has to come from a doctor, who should check your health first and monitor you. Unwanted hair growth is common, and it isn’t suitable for people with some heart conditions.

Do you have to use minoxidil forever?

To keep the results, yes. It doesn’t change the cause of pattern hair loss, so when you stop, the follicles gradually return to where they would have been, usually over three to six months. That’s worth knowing before you start.

If something isn’t right with your hair or scalp, I’ll take your history, examine your hair and scalp closely and give you a written plan. What happens at a consultation.

Questions