A deep-plane facelift (SMAS list, rhytidectomy), is a plastic surgery that aims to give naturally youthful appearance to the face. It reshapes the middle and lower third of the face by lifting the deep layers of tissues, lifting fat compartments and removing excess facial skin. This is the best way to tighten skin around the jaw line, also known as "jowls."
SMAS lifting is a complex procedure that requires extensive knowledge in facial proportions and anatomy, a very specific skill set of surgical techniques and a highly-developed (even artistic) eye for aesthetic detail. As an associate professor in plastic surgery I always train my residents to train their eye and be extremely attentive to tiny details in facial anthropometry.