As you know that the hair loss is a genetic problem, you are genetically predetermined to have hair loss. But the biochemical reason for hair loss is DHT which is a by product of male hormone testosterone. The mechanism of action for finasteride is very well understood it acts as a inhibiotor of DHT and is taken orally. While minnoxidil is applied as topical solution and acts by effecting the permeability of epidermal tissue of hair follicle. The best treatment in early stages to stabilize the hair loss is to use both the drugs in combination therapy, they have a synergestic action.
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