Hero, Boxers get Hit in the Face, a lot round the Eyes. Over a period of Time, the Receptors in and around the skin, dont work as well. So the messages for the Homeostasis dont relay as well, to repair the bruising, Therefore it hardens, thats when Fighters get cut, okay a Head can do it straight away, but as a rule Cuts happen to Fighters more, at the end of careers than at the beginning. Id rather use Caladula and Arnica Creams to keep the Skin supple, also for the Healing properties.