Christie Prendergast, MD, is a double-board certified plastic surgeon in Los Angeles and founder of the Beauty Matrix™, a personalized treatment strategy that utilizes technology, biological data and professional expertise to optimize patient outcomes.

Skin laxity is one of the most common concerns I hear, from the face to the arms, abdomen, and flanks. As a plastic surgeon, a significant portion of what I do is about tightening. And for years, I have watched aesthetic technologies overpromise and underdeliver in this space, leaving the most meaningful interventions to the operating room.