It's a total personal choice. IIt's your hair, you should decide. Finasteride is always the safer route as it has been tested and proved. Dutasteride is better but the safety studies haven't been well established.
If i were I would start with Finasteride and see how it goes for 7-9 months. If not happy, Dutasteride it is.
If i were I would start with Finasteride and see how it goes for 7-9 months. If not happy, Dutasteride it is.