Looksmaxxing and Facial-Aesthetics Glossary
RealSmile uses 17 facial metrics drawn from the published literature on facial attractiveness, cephalometrics, and perception. This glossary defines the 40+ terms that recur in looksmaxxing discussion, plus the formal research terms behind each metric, with a peer-reviewed citation wherever one exists. Entries that lack a citation are community vocabulary, labelled as such, and never stated as scientific fact.
Quick anchor: 18 terms below have full dedicated pages with study links, measurement methodology, and related tests. The remaining entries are short inline definitions in the categories below.
Full deep-dive entries
Canthal Tilt
Canthal tilt is the angle between the inner and outer corners of the eye, measured against a horizontal baseline.
Read definitionPositive Canthal Tilt
A positive canthal tilt means the outer corner of the eye sits higher than the inner corner.
Read definitionNegative Canthal Tilt
A negative canthal tilt means the outer corner of the eye sits lower than the inner corner.
Read definitionHunter Eyes
Hunter eyes are eyes with positive canthal tilt, low scleral show, and a forward-projecting brow ridge — the looksmaxxing community ideal.
Read definitionFacial Width-to-Height Ratio (FWHR)
FWHR is the bizygomatic width of the face divided by the upper face height — a measure of facial squareness linked to dominance perception.
Read definitionGolden Ratio (Phi) in Faces
The golden ratio (φ ≈ 1.618) is a mathematical proportion sometimes used to evaluate facial harmony, popularized by Stephen Marquardt.
Read definitionOgee Curve
The ogee curve is the S-shaped contour running from the temple, along the cheekbone, into the cheek hollow — a key marker of midface aesthetics.
Read definitionGonial Angle (Jaw Angle)
The gonial angle is the angle at the corner of the jaw, where the vertical ramus meets the horizontal mandibular body — measured in degrees.
Read definitionMandibular Plane
The mandibular plane is a horizontal reference line along the lower border of the jaw, used to evaluate facial vertical proportions.
Read definitionMidface Ratio
The midface ratio compares the vertical height of the midface (brow to upper lip) to other facial thirds — a marker of facial proportion balance.
Read definitionPhiltrum
The philtrum is the vertical groove between the nose and the upper lip — its length and shape are key facial proportion markers.
Read definitionCupid's Bow
The cupid's bow is the M-shaped curve at the top of the upper lip — its definition and width are key markers of lip aesthetics.
Read definitionMalar Projection
Malar projection is how far the cheekbone extends forward from the face plane — a primary marker of cheekbone definition.
Read definitionZygomatic Arch
The zygomatic arch is the bony bridge running from the cheekbone to the temple — its width and prominence drive face shape.
Read definitionInfraorbital Rim
The infraorbital rim is the bony lower edge of the eye socket — its forward projection determines under-eye support and tear trough depth.
Read definitionBrow Ridge / Supraorbital Ridge
The brow ridge (supraorbital ridge) is the bony prominence above the eye sockets — strongly sexually dimorphic and a key masculinity marker.
Read definitionNasolabial Angle
The nasolabial angle is the angle between the columella of the nose and the upper lip — a key marker of nose tip rotation.
Read definitionUpper-to-Lower Lip Ratio
The lip ratio is the height of the upper lip vermillion compared to the lower lip — a key proportion in lip aesthetics.
Read definitionRule of Facial Thirds
The rule of facial thirds divides the face vertically into three equal regions — forehead, midface, and lower face — with equal heights signaling balance.
Read definitionNeoclassical Facial Canons
The neoclassical canons are a set of nine ideal facial proportions formalized in 18th-century European art — used today as a baseline for aesthetic evaluation.
Read definitionExtended vocabulary
Brief definitions for community terms and adjacent research concepts. Tap through to a dedicated entry where one exists.
Geometric Metrics
Measurable facial proportions (canthal tilt, FWHR, gonial angle).
- Maxilla Position
- The forward/backward and vertical position of the upper jaw within the cranial base. Anteriorly positioned maxillae correlate with positive canthal tilt, prominent cheekbones, and a shorter midface, and are a recurring topic in skeletal looksmaxxing discourse.Source: Arnett GW, Bergman RT, Am J Orthod, 1993
- Tilted Philtrum
- An asymmetric philtral column where the upper lip ridges deviate from the facial midline. Often a downstream sign of underlying midface asymmetry or unilateral muscle pull rather than a standalone trait.
- Hunter Eyes
- Looksmaxxing term for a deep-set, almond-shaped eye with positive canthal tilt, low brow ridge, and minimal upper-eyelid exposure. Approximates the periorbital pattern documented in classical European male statuary and modern attractiveness research.Source: See: glossary/hunter-eyes
- Prey Eyes
- Looksmaxxing antonym to hunter eyes. Round eye aperture, high upper-eyelid exposure, neutral or negative canthal tilt, and an elevated brow position. Often associated with infantile or "soft" facial readings.
- FWHR (Facial Width-to-Height Ratio)
- The ratio of bizygomatic width to upper-facial height (mid-brow to upper lip). Carre and McCormick (2008) reported FWHR predicts aggressive behavior in male ice-hockey players, though replication has been mixed in non-athletic populations.Source: Carre JM, McCormick CM, Proc R Soc B, 2008
- Canthal Tilt
- The angle of the intercanthal axis relative to true horizontal. Positive (lateral canthus higher) reads as alert and attractive; negative reads as tired or downturned. Population mean clusters near +4 degrees.Source: See: glossary/canthal-tilt
- Gonial Angle
- The mandibular flare angle measured between the ramus and body of the mandible at the gonion landmark. Smaller (sharper) angles produce the squared "masculine" jawline; larger angles produce a softer profile. Adult population range is roughly 110-130 degrees.Source: See: glossary/gonial-angle
- Bizygomatic Width
- The widest horizontal distance across the zygomatic arches (cheekbones). Used as the denominator in cheekbone-prominence and midface-balance ratios.
- Midface Ratio
- The proportion of midface height (subnasale to glabella) to total facial height. Shorter midfaces are associated with more youthful and conventionally attractive faces in cephalometric research.Source: See: glossary/midface-ratio
- Lower-Third Ratio
- The proportion of lower-face height (subnasale to menton) to total facial height. Population norms place this near 33 percent of total height; significant deviation in either direction is one component of long-face or short-face profiles.
- Ogee Curve
- The S-shaped curve from the lower eyelid through the malar prominence and into the buccal fat region, viewed in three-quarter profile. A continuous ogee is a target endpoint of midface filler and fat grafting.Source: See: glossary/ogee-curve
- Golden Ratio (Phi)
- The mathematical ratio 1.618 popularized by Marquardt as a facial-mask overlay. Empirical research has not validated phi as a strong predictor of attractiveness ratings; most modern studies favor averageness and symmetry over single-ratio frameworks.Source: Marquardt SR, J Esthet Restor Dent, 2002
- Facial Thirds
- The classical division of the face into three equal vertical segments: hairline to brow, brow to subnasale, subnasale to menton. Used as a baseline check rather than a rigid attractiveness rule.Source: See: glossary/facial-thirds
- Intercanthal Distance
- The distance between the medial canthi of the two eyes. Used to compute eye-spacing ratios; the neoclassical canon places ideal intercanthal distance at one eye-width.
- Nasolabial Angle
- The angle formed at the columella-philtrum junction between the nasal base and upper lip. Female norms cluster near 95-110 degrees; male norms cluster lower (90-100 degrees). A primary metric in rhinoplasty planning.Source: See: glossary/nasolabial-angle
- Negative Canthal Tilt
- A canthal tilt where the lateral canthus sits lower than the medial canthus. Associated with the "tired-eye" or "sad-eye" reading; often accompanies infraorbital hollowing and a long midface.Source: See: glossary/negative-canthal-tilt
- Positive Canthal Tilt
- A canthal tilt where the lateral canthus sits higher than the medial canthus, typically +3 to +8 degrees. The hallmark of the almond-shaped "hunter" eye in attractiveness research.Source: See: glossary/positive-canthal-tilt
- Infraorbital Rim
- The bony lower border of the eye socket. Strong forward projection produces the "supported lower lid" common in highly rated periorbital regions; recession produces dark circles and a tired reading.Source: See: glossary/infraorbital-rim
- Brow Ridge (Supraorbital Ridge)
- The bony shelf above the eye socket. Sexual dimorphism is pronounced: prominence drives the masculine periorbital read, while a smoother contour drives the feminine read.Source: See: glossary/brow-ridge
- Cupid's Bow
- The double-curve contour at the top of the upper lip. A defined, raised cupid's bow correlates with higher lip-attractiveness ratings; flattening is a recurring complaint in midface aging.Source: See: glossary/cupids-bow
- Mandibular Plane
- The cephalometric reference line from gonion to menton (lower border of mandible). The angle between this plane and the cranial base (SN-MP) is a primary marker of skeletal facial pattern: high-angle vs low-angle.Source: See: glossary/mandibular-plane
- Malar Projection
- The forward / outward prominence of the zygomatic body (cheekbone). High projection drives the "model" midface shadow on three-quarter photos.Source: See: glossary/malar-projection
- Zygomatic Arch
- The bony arch connecting the temporal bone to the zygomatic body. Defines the lateral cheekbone shadow and the widest point of the midface.Source: See: glossary/zygomatic-arch
- Neoclassical Canons
- A 19th-century set of nine ideal facial proportions formalized by anatomists such as Pieter Camper. Farkas (1985) showed that few real faces match more than 3-4 canons; partial matching loosely tracks with attractiveness ratings.Source: Farkas LG, Hreczko TA, Munro IR, Plast Reconstr Surg, 1985
- Lip Ratio
- The vertical-height ratio of the upper lip to lower lip. Female norms cluster near 1:1.6 (lower lip taller); male norms cluster near 1:2. Used as a planning input for lip fillers.Source: See: glossary/lip-ratio
Practices
Mewing, mastic gum, hardmaxxing, softmaxxing, mandibular advancement.
- Mewing
- A tongue-posture practice associated with British orthodontist Mike Mew that prescribes resting the entire dorsum of the tongue on the palate, sealing the lips, and breathing nasally. Proponents claim chronic adoption shifts maxillary growth forward, though peer-reviewed evidence in adults remains limited.Source: Mew JRC, The Cause and Cure of Malocclusion, 2013
- Mastic Gum
- A resin gum from the Pistacia lentiscus tree, marketed to looksmaxxers for jaw hypertrophy via masseter loading. Some surface-EMG studies show acute masseter activation when chewing dense resins, but no peer-reviewed trial has demonstrated lasting bone or jawline change in adults.
- Mandibular Advancement
- A surgical or appliance-based forward repositioning of the lower jaw. Bilateral sagittal split osteotomy (BSSO) is the established maxillofacial procedure; appliances such as Herbst and twin-block are used in growing patients. Both alter the gonial angle and chin projection.Source: Hunsuck EM, J Oral Surg, 1968
- Hardmaxxing
- Looksmaxxing community shorthand for permanent or invasive interventions: orthognathic surgery, rhinoplasty, jaw filler, hair transplant, accutane. Distinguished from softmaxxing by irreversibility and the involvement of a clinician.
- Softmaxxing
- Looksmaxxing community shorthand for reversible appearance work: skincare, fitness, posture, grooming, sleep, photo selection. The category most amenable to measurement and iteration without medical risk.
Perceptual Mechanisms
Halo effect, averageness, Duchenne smile, fluctuating asymmetry.
- Duchenne Smile
- A smile that recruits the zygomaticus major (lip corner) and orbicularis oculi (crow's feet) in concert. Codified in Ekman's Facial Action Coding System; a Duchenne smile is consistently judged more genuine than a polite (non-Duchenne) smile.Source: Ekman P, Friesen WV, J Pers Soc Psychol, 1982
- Halo Effect
- A cognitive bias in which one positive trait (here, physical attractiveness) is generalized across unrelated trait inferences such as intelligence, kindness, and competence. Langlois et al. (1990) meta-analyzed the cross-trait spillover across more than 60 studies.Source: Langlois JH, Roggman LA, Psychol Sci, 1990
- Averageness Hypothesis
- The finding that mathematically averaged composite faces are judged more attractive than the individual faces that compose them. Replicated across cultures since Langlois and Roggman (1990).Source: Langlois JH, Roggman LA, Psychol Sci, 1990
- Sexual Dimorphism
- The degree to which a face displays sex-typical features (jaw width, brow ridge prominence, lip fullness, gonial angle). Independent of averageness; both contribute to attractiveness ratings in opposing-sex perceivers.Source: Perrett DI et al., Nature, 1998
- Fluctuating Asymmetry
- Small random deviations from bilateral symmetry that arise during development. Lower fluctuating asymmetry correlates with higher attractiveness ratings and with developmental stability markers in evolutionary biology.Source: Thornhill R, Gangestad SW, Psychol Bull, 1993
- Photographic Bias
- The cluster of photo-side variables (focal length, lighting direction, head tilt, exposure) that shift perceived attractiveness independent of underlying facial geometry. A short focal length distorts midface width by up to 30 percent.Source: Bryan R et al., PLOS ONE, 2012
Research Frameworks
FACS, wage-premium studies, Farkas canons.
- Facial Action Coding System (FACS)
- Ekman and Friesen's exhaustive taxonomy of every observable facial-muscle movement (Action Units). The reference framework behind expression-classification research and modern emotion-AI systems.Source: Ekman P, Friesen WV, FACS Manual, 1978
Community Concepts
PSL, hunter eyes, mogger, recruiter confidence.
- Recruiter Confidence Score
- A label coined by RealSmile to describe how a photo reads against the LinkedIn / corporate-headshot cohort: warmth, competence, and approachability scored against a recruiter-screening reference set rather than a dating-app reference set.
- Composite Face
- A digitally averaged face constructed from the morphed landmarks of two or more source faces. Composites tend to be rated more attractive than their components, demonstrating the averageness effect.
- Mogger
- Looksmaxxing slang for a face that visibly outclasses ("mogs") nearby faces in side-by-side comparison. The verb "to mog" describes the perceptual contrast effect rather than any single metric.
- PSL (Pretty / Slayer / Looksmax)
- A looksmaxxing-forum scoring scale from 1 to 10 used to rate aesthetic tier. PSL ratings are subjective and cohort-dependent; they are not equivalent to research-cited attractiveness percentiles.
Compare against other face-rating tools
The vocabulary above maps directly to the 17 metrics RealSmile measures. If you are evaluating which tool to use, the comparison hub lays out which tools cite their methodology, which return a written audit, and which charge for the report.
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