How does minoxidil treat female hair thinning?

Minoxidil helps support the growing phase of the hair cycle. It may help some women keep existing hair or grow fuller hair over time. Results vary. Certain topical minoxidil products are FDA-approved for female pattern hair loss. Oral minoxidil is used off-label for hair loss, meaning this use is not FDA-approved.

Topical treatment goes on the scalp, not just on the hair. Follow the directions for your specific product. Do not apply extra doses to try to speed up progress. Oral treatment affects the whole body and requires a review of blood pressure, heart health, other medicines, and pregnancy plans.

Topical minoxidil may cause scalp irritation or unwanted facial hair. Oral minoxidil may cause dizziness, swelling, a faster heartbeat, or unwanted body hair. A licensed physician in your state decides whether prescription treatment is appropriate. If a compounded medication is prescribed, it is prepared by a licensed pharmacy for one patient and is not FDA-approved. Follow the pharmacy label and your physician's instructions.