Serena Williams shared a video of her undergoing a “tummy” skin tightening procedure. “I am getting a type of radio frequency ...

But when the skin expands and stays expanded for years with prolonged weight loss, the elastin "strings" can get damaged ... skin's ability to make more skin-firming collagen.

"As medical weight loss options become more widely available, we're seeing an increasing number of patients who have lost a significant amount of weight but are struggling with excess or loose ...