When the jawline softens, several layers change together. Collagen in the dermis decreases, subcutaneous fat shifts downward, and the fascia that supports the face loosens too.
Danjeong Line splits the work by depth between two treatments. Radiofrequency broadly warms the dermis down to the upper subcutaneous fat, and focused ultrasound forms tiny coagulation points in the subcutaneous fat and the fascia layer (SMAS). If the jaw muscles also stand out, we add botulinum toxin to the muscle layer after an examination.
Changes appear over 2–6 months and differ from person to person. If the sagging is advanced enough that a surgical consultation would suit you better, we will tell you so.

