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Topical finasteride concentrations are likely much higher than necessary for effective follicular DHT suppression, with current standards being 100-1000 times above the theoretical minimum. Lower concentrations (0.001-0.0025%) might still work locally while minimizing systemic exposure.

The conversation discusses the effectiveness of various doses of Dutasteride in reducing scalp DHT and its impact on hair count. Users shared personal experiences with hair loss treatments, including Dutasteride, Finasteride, and Minoxidil, with one reporting significant hair loss reduction using a combination of oral Dutasteride and topical Minoxidil and Finasteride.

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.

Hair loss worsened after introducing Dutasteride, despite its stronger DHT suppression compared to Finasteride. Suggestions include returning to Finasteride, adding Minoxidil, microneedling, and using keto shampoo, with a possible future hair transplant touch-up.

Beard gains from minoxidil are usually permanent due to facial hair follicles' lower sensitivity to DHT. Scalp hair requires ongoing DHT suppression with treatments like finasteride, dutasteride, and RU58841 to maintain gains after stopping minoxidil.