The Effect of Topical Finasteride in Treatment of Idiopathic Hirsutism

A 21-year-old experienced hormone changes after using self-made topical finasteride for hair loss, including a 20% decrease in DHT, a 47% increase in testosterone, and a 39% increase in estradiol. The user previously used minoxidil and microneedling but is now seeking ways to balance hormones, possibly through supplements or dosage adjustments.

Topical dutasteride may have limited absorption due to its higher molecular mass compared to finasteride, potentially affecting its efficacy in suppressing DHT locally. Microneedling might enhance dutasteride absorption, possibly offering stronger local DHT suppression with fewer systemic effects.

A user shared their experience using topical finasteride for 6 months, showing a reduction in DHT levels but no visible improvement in hair loss. They are considering switching to oral finasteride for potentially better results.

The conversation discusses using low concentrations of topical finasteride (0.005% and 0.02%) for hair loss due to concerns about side effects. One user suggests starting with higher doses and monitoring hormone levels, sharing their positive experience with higher doses of finasteride and dutasteride without side effects.

Topical finasteride can be effective for some, especially if oral finasteride causes side effects, but results may vary and can be slower. Combining topical finasteride with minoxidil is common, though some users switch to oral treatments for better results.

Low-dose topical finasteride may reduce scalp DHT with fewer side effects than oral finasteride, though it can still lower blood serum DHT. Users report varying experiences, with some finding topical use effective and side-effect-free, while others note significant DHT suppression.