I am 16 I found there are some thin hair on my lips, it looks like moustache but much thinner. Is it possible that it will grow thicker if I shave it?
Several cultures, as as Russian, believe that shaving hair will make it grow thicker. I have not noted that to be true, except for that the hair tips, after shaving, will become sharp and no longer tapered.
That might feel as though the hairs are thicker and/or tougher, but in reality that isn't true.