The short answer is that a facelift works by readjusting facial tissues that have slipped down due to aging and gravity, sometimes removing excess skin, to give the face a younger, smoother, appearance. The longer answer is that the term "facelift" does not refer to one specific procedure, but rather to a group of surgical options that seek to remedy similar issues. A traditional facelift, known also as a SMAS facelift, tightens both the skin and the layer of muscle immediately underneath the facial surface. A deep plane facelift, on the other hand, involves the repositioning of deeper layers of tissue for an even, more natural appearing and long lasting result. A physician familiar with your medical background and aesthetic goals can help decide which option is best for you.