Treat Hair Loss with Onion?

Okay, I was searching the internet about natural treatments for hair loss when I came across this short video that claims one can use onions to treat hair loss.  I wonder whether anyone has ever tried this before.  Won't you stink if you rub onion on your scalp.  Not for the faint hearted definitely.

Another video here also shows a DIY hair loss treatment using onions too. If anyone ever tries this and it works, do let all of us know.  I am sure those of us who are balding or losing hair will gladly give it a shot.