The Dr. Pen for Microneedling is mainly used for facial wrinkles, scars, and stretch marks. Its main functions are to repair the skin and improve absorption. It can be used for the forehead, head, neck, nose, scalp, chin, and other parts of the body such as the abdomen. The skin will be lustrous and elastic, different from chemical substances or lasers. This Dr. Pen is very easy to operate. It uses sterile, individually sealed disposable needle cartridges for optimal safety and comfort.