Even if men don't advertise which celebrity hairstyle they are copying or that they use styling products, they are copying and they do use the products, just like women. Men tend to use products such as mouse and gel, although newer hair products such as putty are beginning to make their way into more and more men's hair styling regimen.
Men are also more into styling products than they would like to let on. They aren't afraid to use them, but don't like to advertise that fact to their friends. They know that to achieve perfect celebrity hairstyles, takes time and money and they are OK with that.