The "Skinny Pen" refers to a weight-loss medication called liraglutide (brand name Saxenda) that is administered through a daily injection. It works by mimicking a hormone that regulates appetite, helping patients feel fuller for longer. This treatment is often used for individuals who struggle with obesity but are not candidates for surgery or who need additional help in managing their weight post-bariatric surgery. The drug is available by prescription and is used in conjunction with diet and exercise.