Finasteride reduces scalp DHT significantly even at low doses, with 0.2 mg reducing it by about 55%, but higher doses like 1 mg and 5 mg offer only marginally more reduction. Users discuss side effects, with some experiencing none and others reporting issues like low libido, and they also mention using other treatments like minoxidil and dutasteride.
A user experienced increased estradiol, nipple tenderness, and ED after taking finasteride. They are considering dose reduction to mitigate these effects.
Topical finasteride results in plasma levels 100 times lower than oral finasteride, potentially reducing systemic side effects. Users report similar efficacy with fewer side effects, suggesting a preference for topical application.
A 26-year-old male experienced hair regrowth using finasteride, minoxidil foam, and micro-needling over 2-3 months, with significant improvement in the crown, sides, and temples, but less in the hairline. He noted side effects like fluid retention in the ankles and weight gain but no change in libido.