Dr. Jang Yeon-sik, the CEO of Cheong-A Yeon Clinic, conducts personalized one-on-one consultations with patients. Using 3D measuring devices and diagnostic ultrasound, he accurately assesses skin concerns and conditions, designing sustainable treatments. Through ongoing research, he holds patents for lipolytic injections, skin elasticity-enhancing ingredients, and a treatment system that minimizes pain. By integrating treatment with a Korean medicine clinic, he has established a complementary system, offering diet treatments and management services tailored to each patient's constitution and lifestyle.