What Makes a Face Look Feminine: The Science of Feminine Facial Features

Sexual dimorphism in the face — the structural differences between male and female faces — is driven primarily by the differential effects of oestrogen and testosterone during puberty. Testosterone promotes bone growth at the brow ridges, jaw, and chin, while oestrogen promotes growth of facial fat pads and limits the more angular bone remodelling that testosterone drives. The result is that female faces tend to have softer angles, more central volume, and more delicate bone structure than male faces of equivalent size.

Researchers including David Perrett and colleagues at St Andrews have extensively mapped the features that signal femininity. Their research shows that the most reliable femininity cues cluster around four regions: the brow-to-eye area (arch height, brow-to-lid distance), the mid-face (cheek volume, nose size), the lower face (jaw width, chin shape), and the lip area (lip fullness, vermillion border definition). Features in all four regions contribute to the composite impression of femininity — no single feature dominates.

Interestingly, the same features that signal femininity also tend to correlate with attractiveness ratings in female faces, which is why femininity and attractiveness are often conflated. However, they are distinct: extremely feminised features can reduce perceived competence and authority in some social contexts, while intermediate femininity with high symmetry produces the highest attractiveness ratings across the broadest range of evaluators.

The brow region is one of the most powerful femininity signals. Feminine brows sit higher relative to the brow ridge (which itself is flatter and less prominent), arch more gracefully, and are generally thinner and more clearly defined than masculine brows. The brow-to-lid distance is greater in feminine faces, creating more visible eyelid space — a feature associated with openness and approachability. A prominent, heavy supraorbital ridge (brow bone) is strongly read as masculine and is one of the features most strongly associated with sex hormone exposure in anthropological research.

Eye size relative to face size is larger in feminine faces, partly because facial bones grow more extensively in males (increasing face size) while orbital size scales less dramatically. Larger relative eye size is one of the most reliably perceived femininity cues across cultures. The canthal tilt shows modest sexual dimorphism: both sexes have variation, but the overall impression of large, open, relatively centrally placed eyes reads as feminine, while deep-set, hooded eyes with low brow-to-lid distance reads as more masculine.

Lashes are a significant secondary cue. Female faces in most populations have longer upper lashes relative to face size, partly due to the effect of oestrogen on lash follicle growth during puberty. This is one reason mascara is so consistently effective at feminising the eye area — it amplifies a feature that is genuinely dimorphic.

Cheek volume is a central femininity signal. Oestrogen promotes the development and maintenance of facial fat pads — the buccal fat pad, the malar fat pad, and the submalar fat pad — that give the female face its fuller, rounder mid-face appearance. High, full cheeks are rated as highly feminine and attractive, partly because they are signals of oestrogen exposure and reproductive health. Cheek volume declines with age as these fat pads descend and shrink, which is why prominent cheekbones are also associated with youth.

Nose size relative to face size is smaller in feminine faces. Testosterone promotes nasal bone growth more aggressively during male puberty, resulting in a longer, wider, more prominent nose on average. The feminine nose ideal is narrower at the bridge, shorter in projection, and with a slightly upturned nasolabial angle. These features are associated with femininity rather than any absolute size measure — a larger nose on a small, feminine face can read neutrally, while a large nose on an already masculine-reading face amplifies the impression.

Skin quality is a major femininity signal that is often overlooked in structural analyses. Female skin is on average smoother, more uniformly pigmented, and more luminous than male skin due to oestrogen's effects on collagen density and sebaceous gland size. Visible pores, beard shadow remnants, and redness all reduce perceived femininity. This is part of why a flawless, even complexion is so strongly associated with feminine attractiveness — it amplifies one of the most reliably dimorphic features.

Jaw width is among the strongest femininity signals in the lower face. Testosterone drives lateral growth of the mandible during male puberty, producing a wider, more angular jaw. Feminine faces have a narrower, more tapering jaw that converges toward a softer, more pointed chin. The jaw-to-cheekbone width ratio — where cheekbones are wider than the jaw — is a particularly strong femininity cue. The reverse ratio (jaw wider than cheekbones) reads as masculine.

Chin shape shows clear dimorphism. Masculine chins tend to be wider, taller, and more squared or cleft. Feminine chins tend to be narrower, shorter, and more pointed or softly rounded. A prominent, wide chin is one of the single features most consistently associated with perceived masculinity across cultural studies. Softening or reducing the visual width of the chin — through makeup contouring, hair framing, or angle choice in photos — is one of the highest-leverage feminisation moves available.

Lip fullness is reliably dimorphic in favour of female faces. Oestrogen promotes lip fullness and lip eversion (the degree to which the vermillion border of the lip is visible and turned outward). Research by Stulp and colleagues found that lip-to-face-area ratio was a significant predictor of facial femininity ratings. The philtrum — the groove between the nose and lip — tends to be shorter in feminine faces, which pushes the lip upward and increases the visible upper lip height.

Makeup is the most immediate femininity tool. The highest-leverage moves: defining and arching the brows (amplifies the brow-eye dimorphism), enlarging the apparent eye size with liner and mascara (amplifies the eye-size dimorphism), adding cheek colour and highlight (amplifies mid-face volume and luminosity), and filling and defining the lips (amplifies the lip fullness dimorphism). Contouring the jaw narrower and the nose slimmer rounds out the full toolkit.

Hairstyle choices can dramatically alter perceived facial femininity by framing the jaw and forehead differently. Soft layers that fall below the cheekbone narrow the visual jaw width. A centre or slight side part creates vertical lines that elongate the face. Side-swept fringes soften the forehead and brow region. Long hair universally feminises because it is a secondary sex characteristic associated with oestrogen-driven hair growth, regardless of face shape.

For those interested in understanding exactly where their face falls on the femininity spectrum, our face rater uses 478 facial landmarks to measure structural proportions including facial thirds, jaw width, and eye spacing — features that all contribute to the femininity impression. The measurement gives you a specific baseline rather than a vague impression.