The larger lift head also stimulates the fibroblasts (cell responsible for the natural production of collagen and elastin) on larger areas of the face. Wellbox Lift treatment heads are mechanical collagen activators to improve the overall appearance of your skin. Lift 2 treatment head is mainly used on the face, neck and décolleté. If you have any questions please call us at (701)223-9936 or Toll Free (800)355-2956