Lip fillers are cosmetic treatments used to enhance lip volume and shape. They involve injecting a hyaluronic acid filler, into the lips to add fullness and definition. This procedure can also help in reducing fine lines around the mouth, leading to a more youthful and aesthetically pleasing appearance. The results are temporary, lasting several months, and the procedure can be customized to suit individual preferences in terms of lip volume and contour. Lip fillers are popular for their immediate results and minimal downtime.