— They work differently and produce distinct results: 
 1 Lip Filler: Adds volume to the lips using hyaluronic acid-based products, making them look fuller and more plump. 2 Lip Flip: Uses Botox to relax muscles around the lip border, causing the upper lip to slightly roll outward, giving the illusion of a fuller upper lip without adding volume. In short, fillers enhance volume, while a lip flip subtly reshapes. Combining both can give a fuller, defined look, but individually they provide different effects.