I am a 20 year old asian male. Last year i had buzzed my hair down to a grade 1 expecting it to grow back like before but it didn't. My hair is still there but the diameter is decreasing especially in the temples and crown. I've been told that this is completely due to genetics. Im keen on taking finasteride but i don't know how to go about it. I heard taking 0.25mg a day and seeing if there's any side effects is optimal then increasing the dosage if it works. Advice is appreciated Thank you