It's been proven that men do have different skin than women, and by extension, different skincare needs and concerns. Not only does testosterone make men's skin thicker, it also makes it tougher for some. So, dedicated men's lines and products aren't just marketing tactics. (We could do without the hypermasculine marketing, though.) Don't know where to start? Here are the classic, tried-and-tested grooming brands that you need to know.