Understanding the Vascular Anatomy of the Face: Introducing the X-Y-Z-Concept.

The demand and use of injectable fillers are increasing and performed by practitioners at different levels. They are frequently used to rejuvenate and volumize the face, but there are well-known complications that can occur with intraluminal injection or compression of the facial vessels. The knowledge of the vascular anatomy of the face, particularly the predictable depth, can prevent these devastating complications.