At 21, I would not automatically assume that what you are seeing is true age-related jowling. The shape of the lower face is strongly influenced by genetics, facial bone structure, fat distribution, skin elasticity, and muscle anatomy, so some people naturally have a softer or less sharply defined jawline at a very young age. The first step is figuring out what is creating the appearance of the “jowls.” For example, it could be a small amount of tissue or fat along the jawline, a naturally less prominent chin or jawbone, mild skin laxity, or simply the way your facial tissues are positioned. These are treated very differently. If the issue is primarily a lack of definition rather than loose skin, a small amount of strategically placed hyaluronic-acid filler along the chin or jawline can sometimes create a sharper transition and camouflage the area. However, I would be conservative at your age. Adding too much filler to the jaw can make a young face look heavy rather than naturally defined. If there is genuine mild skin laxity, non-invasive skin-tightening treatments using ultrasound or radiofrequency can provide modest tightening by stimulating collagen, although the results are gradual and considerably more subtle than surgery. It is also worth looking at the chin and overall facial proportions rather than treating the jowl in isolation. Sometimes what appears to be a jowl is actually more noticeable because the chin or jaw lacks projection. Correcting the underlying proportion can improve the appearance without directly adding volume to the jowl. At 21, I would be very cautious about aggressive treatments, threads, or surgical lifting unless there is an unusual structural or medical reason. Your face is young, and the goal should be enhancing your natural anatomy rather than trying to create a completely different jawline. The right treatment, if any, should be based on what is actually causing the contour you are seeing rather than simply treating the word “jowls.”