Risorius is not muscle, but mainly adipose tissue in front of cheekbones. The position of "risorius" is the inverted triangular tissue two centimeters below the eye. When you smile or make an expression, you will bulge slightly because of the extrusion of facial muscles, which looks like a round and bright apple, hence the name "risorius".

Lissolis will shrink with age and look old. Risorius can restore fullness through plastic filling, which can make people look young. Some beautiful women have delicate facial features and good skin, but they feel more inaccessible because of their emaciated and bony faces and lack of softening of fat before cheekbones (that is, risorius).