I am a 17 year old male. I have realized that my hair is thinning and I am trying to prevent it or slow it down. I am currently using things like rosemary oil, jojoba oil, and the hims shampoo (don't use the rest of their treatments only shampoo). I also started with biotin a few days ago, but it is 5000 mcg. I was wondering if it is safe to use it as a 17 year old.