What is finasteride dosing?

Andrew Huberman provides guidance on dosing finasteride for hair loss. He suggests that the best starting dose for oral finasteride is 0.5 milligrams to 1 milligram per day. It's important to start with a low dose and maintain it for a long period—for instance, up to 25 weeks—before considering any increase. This approach is in line with observations that, even at lower doses, significant reductions in DHT levels can be achieved. Moreover, rapid increases in dosage should be avoided to prevent adverse effects and should only be considered if low doses are well-tolerated and insufficient for achieving desired results 1 2.

For topical finasteride, applying 1 milliliter of a 0.025% solution weekly is suggested. This regimen should effectively reduce DHT levels in the blood, optimizing hair maintenance and growth while minimizing side effects 3.

Always consult a healthcare provider when considering finasteride treatment, particularly to monitor hormone levels and discuss potential side effects and their management.