Side view - Lips
Lower lip (Burstone)
How far the lower lip sits forward of Burstone's line from the nose base to the chin, in millimeters. A lower lip slightly ahead of the line is the classical norm; large values read protrusive and negative values recessed.
What counts as ideal
The ideal band is -3.2 mm to -0.8 mm for both men and women. A reading anywhere inside the band scores a full 10.
Ideal range
-3.2 mm to -0.8 mm
How it is scored
Everything inside the band scores 10, and the penalty accelerates the further a reading falls outside it rather than dropping off a cliff at the edge. For the male band, the falloff is measured against bounds of -8.0 mm and 4.0 mm: a reading out at either of those has spent its full allowance and scores about 3. The curve keeps going past them, so an extreme reading still separates from a merely poor one.
Lower lip (Burstone) is one of 67 measurements in the harmony pillar. No single measurement decides a face: each one contributes its own shortfall to a weighted mean, and one hopeless measurement costs a full measurement's worth and never more.
How 84 celebrities measure
Every profile in the library, measured from hand-placed landmarks and scored against the band for that person's sex and ancestry. Readings run from -8.9 mm to 1.6 mm, with a median of -1.3 mm. 41 of 84 land inside the ideal band.
Signature tool
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Upload a front and side photo, place the pins, and every profile in the library is ranked by the measurements you share with it.