08/04/2026
Should Minoxidil 5% be applied once or twice daily?
Minoxidil half life in the skin is about 22hrs so theoretically, once daily dosing should not affect its efficacy - however, you should choose the regimen that you are likely going to be consistent with.
🔑 If you choose to do once daily dosing, we recommend that you use 2ml at night.
A study in 1987 found that patients who switched from twice daily to once daily after two years of using minoxidil experienced hair fall and had less hair count within nine months. The patients who switched to once daily dosing also halved their minoxidil dose, which would be expected to reduce non vellus hair count 😑
Consistency 🔑