There was a time when all kinds of V-faced beauties sprang up, and when you look into the secret of their V-faces, a beautiful chin became the unifying standard. The chin perfectly extends the lines of the face, increasing the smooth balance of the face contour, a beautiful chin is even the essence of a perfect side face, adding a lot of points to the face value. If you compare a person’s face to a piece of writing, then the chin is like the end of the paragraph, the chin is well proportioned and beautiful, the end is well closed, it will increase the smooth balance of the face contour, adding a lot of points to the face. To create a V-face effect, save the awkward side face and improve the convex mouth, look at the golden rule of chin aesthetics. According to the three chambers and five eyes, the height from the tip of the chin to the lower end of the nose is 0.8/3 of the whole face. The height ratio of nasal edge – lip – chin is 1:2 The ideal chin protrusion should be lightly attached to the vertical line of the nasal root, and the tip of the nose, lips and chin are on the same oblique line. The line connecting the mouth and lower lip is in a natural S-shape.