The fullness of the “apple muscle” gives the cheeks an apple-like curve and makes them look like they are smiling even when you are not smiling. A slight smile makes it feel sweeter. If the apple muscle disappears, the face will instantly sag! The “apple muscle” is the muscle tissue located two centimeters below the eyes, and is in the shape of an inverted triangle, also known as the “smile muscle”. The sunken apple muscle will make many people smile without affinity, making people feel a sense of distance, many people with the growth of age, skin loss, sagging, apple muscle will also slowly sink, so you need to enlarge the apple muscle. The procedure only requires a few milliliters of fat to be extracted from the fatty parts and then injected into the “apple muscle” position. If the face does not stand out, the facial expression will look serious, so just fill in some fat and slightly disperse the parts with high cheekbones to create the effect of “apple muscle”, and the face line will become softer at once. 2.Injection method By injecting hyaluronic acid, you can also create the effect of apple muscle. Some women have high cheekbones and their facial expressions look serious, so when hyaluronic acid is injected into the “apple muscle” area, the apple muscle will appear and the facial lines will become softer.