The plasma pen requires additional training for its proper operation and use. This video demonstrates how to operate the plasma pan. The plasma pen requires charging for a full eight hours prior to initial use. In addition it has two settings. If you turn the switch to the left that is a lower setting and to the right is a higher setting. The plasma pen can be used for a variety of procedures either on the face and body. Great care must be exercised when used on the face as well as for ethnic skin as there is risk for pigment changes and potential for scarring as well. Goto facemedstore.com to purchase the plasma pen