The testosterone supplement product Axiron's name sounds a lot like "Action Ron", so I thought it might be fun to have an Axiron advertising mascot character, a guy named Ron, who's a he-man stuff action man, always doing macho action movie stuff, and he's so macho and energetic and dominating because he uses Axiron. (I know it's silly, but aren't they trying to act like it will make your life all full of action, machismo and hot love if you use it? Well then, this guy could be a living embodiment of what they're trying to make us want to be: a comic book character-type of guy, like the pulp novel character Doc Savage.)
Then the slogan could be: "Be like Action Ron: Get some action with Axiron!"