How face shape is measured
Face shape is determined by five key measurements: the width of the forehead at its broadest point, the width of the cheekbones, the width of the jaw at its widest, the total face length from hairline to chin, and the shape of the jawline itself.
StyleMetric AI uses MediaPipe's facial landmark detection to extract these measurements — mapping 468 facial landmarks to calculate proportions with machine precision.
Why face shape matters for styling
Hairstyles, glasses frames, and makeup techniques chosen with face geometry in mind create visual balance. The goal is never to "fix" a face shape — every shape has distinctive strengths — but to understand what creates harmony with your specific proportions.
A hairstyle that adds width at the jaw balances a heart-shaped face. Angular glasses add definition to soft round features. These are optical principles, not opinions.