Facial Thirds

Classical proportion dividing the face into three equal vertical zones: forehead, midface, and lower face.

The upper third runs from hairline to brows; middle from brows to nose base; lower from nose base to chin. Deviations affect proportion scoring.

See Also

Facial Thirds Guide →

Facial Proportion

The geometric harmony of facial features measured via landmark ratios and symmetry.

Golden Ratio

Approximately 1.618:1 — a mathematical proportion cited in classical facial beauty frameworks.

Facial Symmetry

The degree to which left and right facial features mirror each other.

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