This page is not available in the language you have chosen. It will be displayed in English by default. If you would like to view it in a different language, you can try selecting another language.
Left-lower part of FACS AU23 "lip tightener" expression. Appearance: Tightens the lower-left part of the lips and making red parts of the lips appear more narrow.
This Control Curve is driven by MetaHuman Animator.
