Minoxidil for women: which one to use, how to apply it and what to expect
A wider part, more scalp showing under a bright bathroom light, a ponytail that feels thinner than it used to. Thinning hair is common in women, and it creeps up slowly enough that it can take a while to be sure. 5% minoxidil foam, used once a day, is one of the few treatments for it that you can buy without a prescription.
Is it the kind of thinning minoxidil helps?
Minoxidil is for hereditary thinning, often called female pattern hair loss. It usually looks like this:
- a part that slowly gets wider
- thinner hair across the top of the head
- a front hairline that stays more or less where it was
Some hair loss has a different cause and needs a different fix. See a doctor first if your hair came out suddenly or in patches, if it started after a new medicine, or if you also feel unusually tired or run down. Low iron and thyroid problems can both thin hair, and minoxidil won't fix either. A big shed two or three months after childbirth, an illness or a hard few months usually recovers on its own.
Which minoxidil to use
Women use 5% minoxidil foam, once a day. We carry two:
| Kirkland 5% foam for women | Women's Rogaine 5% foam | |
|---|---|---|
| Strength | 5% minoxidil | 5% minoxidil |
| How often | Once a day | Once a day |
| One can lasts | About 2 months | About 2 months |
| Pack sizes | 2, 6 or 12 months | 4 months (two cans) |
They're used the same way. The difference is cost: the Kirkland 12-month box of six cans works out at about half the monthly price of a single can, which adds up for something you'll use every day. Women's Rogaine is there if you prefer the brand.
Stick to the women's foam rather than the men's solution or foam.
How to apply it
- Start with a dry scalp. If you've just washed your hair, towel it dry first.
- Part your hair over the thinning area.
- Run your fingers under cold water and dry them, so the foam doesn't melt on contact, then dispense half a capful onto your fingertips.
- Massage it into the skin along the part, not into the hair. Make new parts about a centimetre apart until the area is covered.
- Wash your hands, and let it dry before you style your hair or lie down. Styling products are fine once it's dry.
Keep it off your forehead and face. Some women notice fine hair on the face where minoxidil has spread from fingers or a pillow. Washing your hands straight away and letting it dry before bed both help. If it happens, stop and ask your pharmacist or doctor.
Missed a day? Carry on the next day as normal. Don't put on extra to make up for it.
What the first months look like
Weeks 2 to 8: extra shedding is common. Minoxidil pushes resting hairs out to make room for new growth, and it usually settles by the third month. It's also the most common reason people stop too early. More on the shed.
Months 3 to 6: results can show from about three months, and some women need at least six. Short, fine new hairs along the part are usually the first sign.
Month 6: compare with your day-one photos. No change at all by now is the time to stop and talk to a doctor.
After that: the new hair stays only while you keep using it. Stop, and the regrowth fades over the following months.
Take photos before your first application, in the same light and with the same part, so you have something fair to compare against. Our free photo tracker keeps them in one place and can email you on each photo day.
Who should check first
- Don't use it if you're pregnant or breastfeeding, or if you're under 18.
- Don't use it on a red, sore or broken scalp.
- Hair loss that's sudden, patchy or has no family pattern needs a doctor before anything else.
- If you have a heart condition, talk to your doctor first.
Common questions
Do I need a prescription?
No. 5% minoxidil foam for women is sold without one in Canada.
How long does a can last?
About two months at half a capful once a day, so the 12-month box covers a year in one order.
How long will I need to use it?
For as long as you want to keep the hair it grows. Minoxidil only works while you use it: stop, and the regrowth fades over the next few months. Women who stay with it make it part of their daily routine.
What about supplements?
Some women take a hair supplement alongside minoxidil, such as Nutrafol Women's or, from 45, Nutrafol Women's Balance. They work differently and don't replace minoxidil.
When will I know if it's working?
Give it six months of daily use and judge by photos, not the mirror. The month-by-month timeline has more detail.
Starting your first can? Our free Minoxidil Results Kit walks through why hair thins, how to apply minoxidil properly and what to expect each month, with a printable 12-month photo tracker.
