Hello. I have losing hair problem, i'm using minoxidil solution 5%for 1 year and 2 months on my hair line but I didn't get a good result and my skin keep coming off of my scalp but I don't have dandruff and I took scalp biopsy and I had no fungus on my scalp. By the way I am using biotin and dexpanthenol injection. I'm thinking about finasteride, should I use it ?i'm 20.