Best Minoxidil for Women

For most women, the best minoxidil is the form you will still be using every day months from now. In head-to-head trials, 5% foam once a day and 2% liquid twice a day both regrew hair, and the foam came with less itch and flaking. Low-dose oral minoxidil is a daily prescription pill, used off-label, for women whose routine does not suit a topical. Its trade-off is a real chance of unwanted facial or body hair. Whichever you pick, give it time. The 2% liquid's label says you may need at least 4 months before you see results.

Which minoxidil is best for women?

The foam is the easiest topical to live with. The liquid is the labeled women's strength. The pill suits women who cannot keep up with a topical. All three use the same drug. Minoxidil widens small blood vessels and may improve blood flow to hair follicles, which may explain why it regrows hair. Topical minoxidil is also the only FDA-approved treatment for female pattern hair loss.

No trial has shown that the pill works better than a topical. The expert group that wrote prescribing guidance for the pill lists comparing topical and oral minoxidil as research that still needs doing. So the choice comes down to which form fits your life, because none of them has been proven the winner.

Should I use minoxidil foam or liquid?

If you want a topical, start with the foam. It goes on once a day instead of twice, and it is kinder to your scalp and your blowout.

In the larger trial, which followed 322 women for 52 weeks, the foam regrew hair as the liquid did. It fell short of formally proving it was as good, and both were well tolerated. In the smaller trial of 113 women over 24 weeks, the foam caused less itch and dandruff, and more women said it did not interfere with styling their hair.

The foam also caused less stray facial hair in one trial. Extra hair on the sideburns showed up in 26% of women on the 2% liquid versus 11% on the foam. On the temples the rates were closer, 25% versus 22%.

One woman using 5% topical minoxidil described the trade-offs plainly. Posting in r/FemaleHairLoss, she said she was also taking spironolactone for acne, and wrote: "Facial hair growth including lashes and brows. I'm okay with it. I now shave my face monthly." She also noticed residue: "topical minoxidil seems to coat the hair pretty thickly so I find myself double and sometimes triple shampooing to get that 'squeaky clean' feeling."

When does oral minoxidil make more sense than foam?

The pill makes more sense when a topical will not survive your routine and you have stopped using it. Hair specialists have agreed on when to choose it. Forty-three hair loss dermatologists from 12 countries signed off on a consensus statement for prescribing low-dose oral minoxidil. Its 76 items cover when to choose the pill over a topical, who should not take it, what to check before starting and how to monitor it. That is why your clinical team screens you before prescribing.

Unwanted hair is the main trade-off. In a pooled analysis of 14 studies and 442 patients taking doses from 0.25 to 5 mg, 24% grew extra hair. Every dose above the lowest range of 0.25 to 0.5 mg carried higher odds of it.

Our clinical team can prescribe minoxidil if it fits your goal. They can also talk through whether a topical or the pill suits your routine.

How long does minoxidil take to work for women?

Give it at least 4 months before you judge whether it is working. The label says you may need to use it that long before you see results. If you see no regrowth by 4 months, stop and ask your clinical team.

Expect a real difference, though not a miracle. In the label's 8-month studies of mostly white women aged 18 to 45 with mild to moderate hair loss, 19% reported moderate regrowth on 2% minoxidil and 40% reported minimal regrowth. On placebo, those numbers were 7% and 33%.

Quitting early is a common way minoxidil fails. In one clinic, 86.3% of 400 patients stopped topical minoxidil, most of them in the first few months. Patients who had used it for over a year were less likely to quit. The researchers recommend giving it at least 12 months to judge how well it works.

Minoxidil works only while you use it. The label says continued use is needed to keep your regrowth, or the hair loss will begin again. That is the reason to pick a form you can keep up. If you do grow unwanted facial hair, it goes away on its own in most cases after you stop.

Is minoxidil right for my kind of hair loss?

• It is for gradual thinning on top of the scalp. The label says not to use it if your hair loss is sudden or patchy, came with childbirth, has no family history behind it, or has a cause you do not know. Your clinical team can help you work out which kind you have.
• Tell your clinical team if you are pregnant, breastfeeding or have heart disease. The label says minoxidil may be harmful during pregnancy or breastfeeding and asks people with heart disease to check before use.
• Stop and ask your clinical team if you get warning signs. These include chest pain, a racing heartbeat, faintness or dizziness, sudden unexplained weight gain, or swollen hands or feet.

Take the quiz so your clinical team can match a minoxidil form to your kind of thinning and your routine. That way you start with one you will still be using when the regrowth shows.