How come topical fin doesn't deliver superior results when it suppresses scalp DHT more effectively than oral?
Finasteride/Dutasteride 1/15/2025

From the encyclopedia

Prescription tablet (1 mg) that slowed hair loss versus placebo in two-year trials. Labels warn of sexual side effects that have continued after stopping, and of depression and suicidal thoughts; not for use in pregnancy.

Dutasteride →

A stronger DHT blocker than finasteride, approved for hair loss only in South Korea and Japan and off-label elsewhere, with the same class of side effects and a much longer washout.

At a glance

In this question or advice post, the primary subjects mentioned are

💧 Finasteride (topical)

💊 Finasteride (oral)

💊 Dutasteride (oral)

the tone is 😐 neutral.

Other terms

topical finasteride oral finasteride DHT scalp DHT systemic DHT Propecia

Topical finasteride is believed to reduce scalp DHT more than oral forms, but its effectiveness is questioned due to inconsistent application and absorption. Oral finasteride is considered more effective because it consistently reduces systemic DHT, ensuring more reliable results.

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