15 years, director Zhang Xiaotian devoted himself to the study of facial sculpture. Through tens of thousands of successful operations in China, Japan, South Korea and Thailand, it is found that the traditional description of standard beauty faces such as three courts and five eyes, V-line, oval face and oval face has great limitations. He pointed out that the perfect Asian face should be a graceful curve from the zygomatic arch to the chin.

After a lot of statistical analysis and accurate calculation of the golden ratio of the face, Director Zhang Xiaotian concluded that the perfect curve of the face should be a quadratic parabola, and its formula is y =1/2x2 (0 ≤ x ≤ 3); At the same time, the side of the standard face, the protruding points of the nose tip, chin and mandibular angle, and the protruding points of chin, ipsilateral mandibular angle and contralateral cheekbone are also on this perfect parabola with a 45-degree angle of view. Director Zhang Xiaotian's innovative "face perfect parabola theory" is called "smile curve" by beauty seekers.

The Essence of Facial Stereo —— Nasal Aesthetics

Director Zhang Xiaotian summed up the nose beauty standard of exclusive XT art famous products through practical cases combined with "golden ratio art aesthetics";

Laws 3 and 5: the ideal nose length is the same as the ear length, which is one third of the face length; The ideal nose width is the same as the eye length, which is one-fifth of the face width;

Angle law: nose frontal angle 120 degrees ~ 130 degrees; The nasolabial angle is 90 degrees; The angle of nasal tip is 85 ~90 degrees; The nose segment consisting of the tip of the nose and two alars should be an equilateral triangle.

One-word law: when the tip of the nose is connected to the chin, the upper lip is 2mm away from the one-word line and the lower lip is 1mm away from the one-word line.