Minoxidil vs. Finasteride: What's the Difference?

When we talk about hair loss treatments, two names always come up in conversation: Minoxidil and Finasteride. Although both are effective, they do not work in the same way nor are they aimed at the same type of patient. Here we explain their differences so you can make an informed decision.

What is Minoxidil and how does it work?

Minoxidil is a vasodilator that improves blood circulation in the scalp, bringing more oxygen and nutrients to the hair follicles.

• Forms: topical (dropper, foam) or oral (capsules).
• Main action: stimulates growth and thickens existing hair.
• Indications: works for men and women with androgenetic alopecia, diffuse hair loss, postpartum hair loss, or stress-related hair loss.
• Advantage: can be used by both sexes.
• Limitation: requires continuous use; if discontinued, hair returns to its original state.

What is Finasteride and how does it work?

Finasteride is a medication that works by blocking the 5-alpha reductase enzyme, which is responsible for converting testosterone into DHT (dihydrotestosterone), a hormone directly related to male pattern baldness.

• Form: daily oral pill.
• Main action: stops hair loss caused by DHT.
• Indications: primarily recommended for men with androgenetic alopecia.
• Advantage: stops the hormonal process that causes baldness at its root.
• Limitation: not indicated for women and may have sexual side effects (decreased libido, erectile dysfunction in some cases).

Key Differences: Minoxidil vs. Finasteride