Hair Growth Remedies

i’ve heard that some people use Biotin to help with hair growth. i’m 19 and my hair is really thin. how effective is it? when will i start to see results? are there any side effects such as increase hair growth in other places other than the scalp? or increase of acne? also, which product is better? or is Biotin a pretty good choice? thanks!

I am in my thirties and could probably grow a full beard. I am so tired of getting it waxed and plucked but can not afford laser removal. Does anyone know of any good creams that can help remove hair permanently or even slow the growth?