Is Kyokushin Karate Effective?
Kyokushin is one of the more respected karate styles because of their training methods and hard sparring. If you want to train for MMA or for punches to the head, cross train in boxing. Kicks to the head are allowed and encouraged in Kyokushin so they do train to protect their heads. Go visit a class and talk with the instructor afterwards and let him know what your goals and expectations are. Also, maybe you have heard of a certain Welterweight fighter in the UFC named Georges St. Pierre who studied Kyokushin.