Best hair growth supplement/vitamin?

So When I was younger I had thick curly hair, but at a young age (15) my mom put me on birth control (Depo Provera) and right away my hair started thinning and falling out. It never really bothered me until a few years ago when I actually realized how bad it’s gotten (I’m not on any birth control now, I stopped at 19). I can’t wear my hair down because it looks like I’m literally bald. So far I’ve tried natures bounty quick dissolve biotin and good ole Bear Grease (First Nations traditional way) and haven’t seen any change. Any suggestions on something that will really work. 🙏🏽