Yoonchae, a member of the rising K-pop group Katseye, has undergone a significant transformation in her approach to beauty since moving to the United States in 2023. Previously, her makeup routine was minimalistic, primarily focusing on eyeshadow, contour, and blush, which she felt contributed to a youthful, 'baby-like' appearance. Today, her routine is far more refined, showcasing a mastery of techniques designed to create a sculpted and sophisticated aesthetic, perfectly aligning with her group's mature image.

The 18-year-old artist meticulously applies Luna concealer in an inverted triangle shape under her eyes, a method she employs to brighten the central area of her face and achieve a 'snatched' or defined look. This strategic application is crucial for her, particularly when she is in the public eye. Yoonchae’s philosophy extends to the art of contouring, where she uses Rom&nd’s powder contour. She specifically highlights the importance of nose contour, emphasizing its ability to prevent her face from appearing 'empty' on camera. She applies this powder to the sides and tip of her nose, meticulously shaping it to enhance facial definition. However, Yoonchae's beauty practices diverge when it comes to her private life versus her professional persona. While she may indulge in the Korean makeup technique of aegyo sal, which involves dusting brown eyeshadow on the fat pocket under the eyes to create a cuter look, she consciously avoids this for her onstage performances. This deliberate choice underscores her commitment to Katseye's mature concept, ensuring her stage presence reflects the group's desired image.

Yoonchae's beauty evolution from a 'baby-faced' individual to a polished K-pop idol exemplifies a strategic and thoughtful approach to makeup. Her emphasis on precision contouring and highlighting, coupled with her conscious decision to adapt her look based on the context—whether for personal life or professional performances—demonstrates a deep understanding of how makeup can shape perception. This nuanced application of beauty techniques ensures she maintains a consistently 'snatched' and sophisticated image, pivotal for her role in Katseye.