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Beard hair grown with minoxidil can become permanent because it is not sensitive to DHT, unlike scalp hair, which requires ongoing minoxidil use even with DHT blockers like finasteride or dutasteride. Dutasteride reduces scalp DHT significantly but not completely, which may explain why scalp hair still needs minoxidil for maintenance.

DHT blockers like dutasteride can reduce beard thickness while improving scalp hair. Using minoxidil on the beard may help maintain its thickness.

Finasteride helped stop hair loss progression and slightly thickened hair, but reduced beard and chest hair growth. The user also uses ketoconazole shampoo for scalp itchiness.

Finasteride is likely causing beard thinning due to its anti-androgen effects, which reduce DHT levels necessary for thick facial hair. Some users suggest using minoxidil to potentially counteract this effect, while others note that stopping finasteride may allow the beard to regrow.

DHT promotes beard growth but causes scalp hair loss due to inflammation and fibrosis. Treatments like finasteride and minoxidil help with hormonal signals and blood flow but don't address underlying inflammation.