Is Rogaine only supposed to treat hair loss at the crown or can it be used for temple and frontal balding as well? If it is not meant for frontal balding, are there any products or drugs that do help with frontal balding?

I am not sure what you are treating. Do you have male pattern balding? You could have hair loss from other causes. Rogaine (minoxidil) can be used for temples and the frontal area, but it is highly unlikely to regrow hair there. Propecia works best in the crown, but it may be more effective than monoxidil in the frontal area in some people.

Balding Forum - Hair Loss Discussion

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