i've always thought guys look weird if their forehead is too flat... just doesn't look right imho. i think men should wait as long as possible before getting botox.
I get Botox and I would say it looks pretty normal. You need a qualified doctor that knows how to inject it. He should always leave one or two main wrinkles on the forehead when it comes to men.
Guys look better a little rugged. If they are the appropriate age for wrinkles they should at least have some. It doesn't look natural. I don't like men when they look like sissy nancy boys.