The core effect of HEADrang is the facial collapse, V-line contour change induction, and asymmetry calibration by constant applied pressure.

Especially, the shrinking and correction of jawbone and protruding cheekbone is one of those effects HEADrang offers confidently: of you wear HEADrang daily at least 60 minutes, the pressure is applied to the jawbone continuously to narrow the clearance of the bone, enabling contour change and size reduction  as much as 1cm in about 100 days owing to the flexibility of the bone.