Recently there has been increasing concern about skin sagging and loss of elasticity due to aging. High intensity focused ultrasound (HIFU) treatment is a US FDA approved non-invasive “high-tech” way that improves skin laxity and sagging. HIFU generates ultrasound waves of high intensity which penetrate up to certain depth of the skin and stimulate new collagen formation along with shrinkage of existing once in order to tighten the skin. It is an office procedure without any down-time. Usually two sessions are done 3 months apart. It is excellent for jowls, sagging skin under the chin, sagging skin over the neck and overall facial sagging. There is bearable discomfort during treatment. There are no side effects.