Werschler et al reported a scale for evaluating the thickness of the lips. The shape, size, fullness and symmetry of the lips impact attractiveness. The authors are from the University of Washington in Seattle, Kythera Biopharmaceuticals, Allergan Inc, and UCLA.
Analysis: visual appearance of lips when together
Parameters:
(1) amount of red lip (vermilion) visible
(2) contour of the lips
Amount of Red Lip Visible
Contour of the Lips
Grade
minimal
flat or nearly flat
minimal
some
no lower lip pout
mild
moderate
slight lower lip pout
moderate
significant
pout affecting upper and lower lips
marked
very significant
significant pout of upper and lower lips
very marked
where:
• The amount of red lip visible appears to refer to the vertical expanse of the lip vermilion of the upper and lower lips. An actual measurement might reduce variation associated with terms.
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