Exude confidence with a thicker and fuller beard. The King Leonidas Derma Roller activates dormant hair follicles and helps grow a rich and healthy beard. It can also be used on the scalp to promote thicker and healthier hair, giving you a manlier appearance. The King Leonidas Derma Roller is equipped with 540 micro-needles, which efficiently penetrates the skin and stimulates collagen, blood circulation, and keratin production, activating natural hair growth. The King Leonidas Derma Roller 0.3mm is travel-friendly and is made using premium-grade titanium to ensure you get a safe and painless treatment in the comfort of your home.