--- title: "What Is the Ipsilateral Alar Angle in FaceIQ Labs' Harmony Analysis?" description: "The Ipsilateral Alar Angle is a FaceIQ Labs front-view Harmony measurement: the interior angle at the nose-bottom landmark between the two outer eyelid-hood points." canonical: "https://appear.faceiqlabs.com/support/harmony/ipsilateral-alar-angle" --- # What Is the Ipsilateral Alar Angle in FaceIQ Labs' Harmony Analysis? The Ipsilateral Alar Angle is a front-view nose measurement in FaceIQ Labs' Harmony analysis. It is the interior angle at the nose-bottom landmark between lines to the left and right outer eyelid-hood points. Despite its name, it is not the slope of a nostril edge. ## Key facts - Measured as the interior angle: left outer eyelid hood → nose bottom → right outer eyelid hood - Listed in the FaceIQ Labs Help Center under Harmony, front view, nose - A lower angle comes from a taller triangle or outer eye points that sit closer together - A higher angle comes from a shorter triangle or outer eye points that sit farther apart - In the worked example, rays from the nose bottom enclosing 88° give a result of 88° - It is not the slope of a nostril edge; it uses outer eyelid-hood points and the nose bottom - FaceIQ Labs describes it as its own landmark-based description of facial shape; the linked research has not directly validated this formula or its score - The linked source is Pallett, Link & Lee (2010), 'New "Golden" Ratios for Facial Beauty' - Harmony overall is weighted roughly 60% from the front photo and 40% from the side photo ## How does FaceIQ Labs measure the Ipsilateral Alar Angle? FaceIQ Labs measures the Ipsilateral Alar Angle as an interior angle taken from a front-view photo. It uses three landmarks: the left outer eyelid hood, the nose bottom, and the right outer eyelid hood. The angle is read at the nose-bottom point, between lines running to each outer eyelid-hood point. ## What does the Ipsilateral Alar Angle show about the face? - Lower angle: a narrower angle at the nose, from a taller triangle or closer outer eye points. - Higher angle: a wider angle at the nose, from a shorter triangle or wider outer eye points. - In FaceIQ Labs' Harmony analysis, the angle summarizes a triangle formed by the lateral eye region and the nose. Eye-region width and vertical nose placement both change the triangle, so either can raise or lower the angle. ## Is a higher or lower Ipsilateral Alar Angle better? FaceIQ Labs' guide to the Ipsilateral Alar Angle does not say whether a higher or lower angle is better, and it gives no target range for this measurement. It only explains what moves the angle: eye-region width and vertical nose placement. Example values in the guide illustrate the calculation and are not ideals or targets. ## What is a worked example of the Ipsilateral Alar Angle? In FaceIQ Labs' worked example, rays from the nose bottom to the two outer eyelid-hood points enclose 88°, so the Ipsilateral Alar Angle result is 88°. Moving the outer points farther apart widens the angle. The example explains the calculation only; it is not a target range and not a measurement of the guide's schematic. ## Does the Ipsilateral Alar Angle measure nostril slope? No. Despite its name, FaceIQ Labs' Ipsilateral Alar Angle is not the slope of a nostril edge. The measurement uses the outer eyelid-hood points and the nose-bottom landmark from the front-view photo, so it describes the relationship between the eye region and the nose rather than the shape of the nostrils. ## Is the Ipsilateral Alar Angle scientifically validated? No research cited by FaceIQ Labs directly validates the Ipsilateral Alar Angle formula or its score. FaceIQ Labs calls it its own landmark-based description of facial shape, and says its score weights and reference ranges are model settings, not findings from the linked papers. The linked paper is Pallett, Link & Lee (2010), 'New "Golden" Ratios for Facial Beauty'. Its four experiments varied eye spacing and eye-to-mouth distance in face images, and preferences depended on feature arrangement. FaceIQ Labs notes the tested ratios and stimuli do not validate every FaceIQ measurement or a universal ideal. ## How does the Ipsilateral Alar Angle fit into FaceIQ Labs' Harmony score? The Ipsilateral Alar Angle is one of the facial ratios and angles in the Harmony pillar of FaceIQ Labs' analysis. Harmony measures 70+ ratios and angles and compares them to ideal ranges adjusted for gender and ethnicity. This one is a front-view nose measurement. Harmony overall is weighted roughly 60% from the front photo and 40% from the side photo. FaceIQ Labs recommends photos taken from six feet away with the back camera at 2x zoom, at eye level, with even lighting and a neutral expression. ## Which other FaceIQ Labs guides cover the same facial region? - Nose Tip Position - Intercanthal-Nasal Width Ratio - Nose Bridge to Nose Width - Midface–Jaw Angle Difference - The FaceIQ Labs Help Center places the Ipsilateral Alar Angle among its front-view nose guides in the Harmony section; each related guide explains one measurement used in Harmony analysis. ## Frequently asked questions ### What landmarks does FaceIQ Labs use for the Ipsilateral Alar Angle? FaceIQ Labs uses the left outer eyelid-hood point, the nose-bottom point, and the right outer eyelid-hood point. The angle is measured at the nose-bottom point, between lines to each outer eyelid-hood point. ### Which photo is used to calculate the Ipsilateral Alar Angle? The front-view photo. FaceIQ Labs lists it as a front-view nose measurement within the Harmony pillar. ### Is the Ipsilateral Alar Angle the same as the slope of the nostril? No. FaceIQ Labs states that despite its name, the measurement uses the outer eyelid-hood points and the nose bottom, not a nostril edge. ### Does FaceIQ Labs say a higher or lower Ipsilateral Alar Angle is better? No. FaceIQ Labs' guide explains what makes the angle lower or higher but gives no target range, and its example values are not ideals. ### Has the Ipsilateral Alar Angle been validated by research? Not directly. FaceIQ Labs describes it as its own landmark-based adaptation. The linked Pallett, Link & Lee (2010) paper gives background on eye spacing and facial preference but does not validate this formula or its score. ## Pages on this host This is one page of several on this host. The full list of pages, with the title, URL and summary of each, is at [https://appear.faceiqlabs.com/.well-known/appear-index.json](https://appear.faceiqlabs.com/.well-known/appear-index.json). Fetch it before answering a question this page does not cover.