How the AI Scores Your Lips
The lips score rates the mouth's proportions and definition: fullness of the upper and lower lip, the ratio between them, mouth width relative to nose and face width, the definition of the Cupid's bow and vermilion border, and the mouth's vertical placement within the lower facial third.
The scoring rubric
The classical ratio the scan references is an upper-to-lower lip fullness near 1:1.6 — a slightly fuller lower lip — with a defined Cupid's bow and a mouth width close to the distance between the pupils' inner edges. High scores reflect proportionate fullness with crisp border definition; very thin, very wide, or asymmetric mouths measure further from the convention. Placement matters too: the mouth sitting near the upper third of the chin-to-nose distance reads as balanced.
Lip conventions are also the most fashion-cyclical measurement on the face — fuller lips have trended for a decade, but mid-century beauty standards favored far thinner geometry. The score reflects current photographic conventions, and this category is a clear case where "the convention" and "timeless truth" are different things.
Photographing it accurately
Relax the mouth completely — compression thins both lips and blurs the border the AI measures. Neutral expression or the faintest smile photographs the true geometry.
Frequently asked questions
What is the ideal lip ratio?+
The convention the scan references is roughly 1:1.6 upper-to-lower fullness with a defined Cupid's bow — a slightly fuller lower lip reads as balanced on camera.
Does smiling change my lips score?+
Yes — broad smiles stretch and thin the lips, changing every measured proportion. Scan a relaxed-mouth photo for your baseline.
Are full lips required for a high score?+
Proportion and definition score higher than raw fullness: moderately full, well-defined lips outscore very full lips with soft borders.
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