Resting lip posture

A moving mouth

The orbicularis oris participates in the closure, compression and projection of the lips, in relation to the other facial muscles. These movements modify their contour and their visible surface. The same volume of tissue can therefore give a more inward or more projected mouth depending on the expression adopted at that moment.

The volume shown and the volume owned

When a lip is rolled inward, part of its visible surface is hidden. Re-highlighting it changes the look without adding fabric. This is a practical explanation for the differences observed in some looksmaxxing comparisons: a more flattering photograph may reflect a different posture, and is not enough to establish that the lips have enlarged.

The chin can compensate for the closure

Closing accompanied by muscular tension may signal difficulty in bringing the lips together. The assessment of oral posture takes into account breathing and the structure of the mouth, rather than imposing the same instructions on everyone. Releasing a habitual contraction can improve expression; removing an offset does not automatically change what makes it necessary.

Training strength does not demonstrate aesthetic gain

Studies have examined lip closure training, including with a device, in young adults. Measuring an increase in strength, however, is not measuring thicker or more attractive lips. For this sheet, the priority remains the presentation at rest; a lip training program cannot be presented as an established method of increasing volume.