When exploring nasolabial fold treatments in Korea , it is essential to understand that a deep smile line is a structural concern. At Forena Clinic Seoul , we approach these folds differently. To achieve natural results , we focus on restoring the midface architecture and skin health. 1. Identifying the Structural Cause Effective treatment begins with a precise diagnosis. Most nasolabial folds are caused by one of three anatomical factors: Midface Sagging:  The descent of mal