| Landmark | Definition |
|---|---|
| Glabella (G) | The most prominent midpoint of the frontal bone, between the eyebrows. |
| Nasion (N) | The deepest point of the nasal bridge, on the intersection between the midline of the nasal root and the nasofrontal suture. |
| Endocanthion left (EnL) and right (EnR) | The point at the inner commissure of the left and right eye fissures. |
| Exocanthion left (ExL) and right (ExR) | The point at the outer commissure of the left and right eye fissures. |
| Pronasale (Prn) | The most protruded point of the apex nasi, identified in lateral view of the natural head position. |
| Subnasale (Sn) | The midpoint of the angle at columella base. |
| Alare left (AlL) and right (AlR) | The most lateral point on each of the alare contours. |
| Labiale superior (Lab sup) | The most prominent midpoint of the upper vermilion line. |
| Labiale inferior (Lab inf) | The most prominent midpoint of the lower vermilion line. |
| Cheilion left (ChL) and right (ChR) | The most lateral points of the labial commissures, joining the superior and inferior lips. |
| Pogonion (Pog) | The most anterior midpoint of the soft tissue of the chin. |