Do You Make Hair Inferences?

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You see a man with a shaved head. A woman with gray hair. A Black woman wearing her hair naturally. Someone with long blond hair.

Before any of them speaks, you may already have formed an impression.

Hair is one of the most visible parts of a person’s appearance. We may use it to make inferences that extend far beyond hairstyle. Research suggests that hair can influence our judgments about age and attractiveness, but also dominance, competence, professionalism, health, and personality.

Hair and Power

A particularly revealing study published this year visually separated hair from the face to see how much each contributed to first impressions. Swanson and colleagues (2026) showed participants photographs of 40 people in three different forms: the whole person’s head, the face with the hair hidden, or the hair with the face hidden. Participants were asked to make judgments on either how powerful or warm the person seemed.

Hair turned out to matter quite a lot for judgments of power. Ratings based on the hair alone strongly predicted how powerful the whole person appeared, even after researchers accounted for judgments based on the face. Hair contributed much less to impressions of warmth, such as whether someone seemed kind or cooperative. This research did not attempt to identify which hairstyles made people seem more powerful, however.

But earlier research found a similar effect with shaved heads. Mannes (2013) showed that men with shaved heads were perceived as more dominant than men with full heads of hair. In one experiment, researchers digitally removed the hair from photographs of the same men. The shaved versions were judged as more dominant, taller, and stronger.

So it seems that hair can clearly contribute to impressions of status and physical presence before we know anything about how a person actually behaves.

Hair and Professionalism

The stakes can become higher when judgments of appearance contribute to hiring decisions. Koval and Rosette (2021) examined how Black and White women were evaluated as job candidates while wearing either natural or straightened hairstyles. Across four studies, Black women with natural hairstyles were judged as less professional and less competent than Black women with straightened hair. They were also less likely to be recommended for an interview.

The effect was stronger in industries with relatively conservative appearance norms. In this case, Hair was not simply influencing judgments of attractiveness. Evaluators use the appearance of a candidate's hair to judge whether they looked as though they belonged in a professional role. The distinction matters because standards of “professional appearance” can feel neutral and objective even when they clearly reflect culturally specific expectations about what competent people are supposed to look like.

How Gray Hair Is Perceived

Hair also gives us an immediate cue to age. Nutt and colleagues (2025) digitally altered photographs so that the same faces appeared with gray or non-gray hair. Both men and women were judged as older and less attractive when their hair was gray. Some judgments differed depending on who was doing the observation and rating. Male participant observers rated people with gray hair as less trustworthy, while female participant observers did not. In this study, gray hair didn’t significantly change judgments of social status or aggression.

The pattern is interesting because gray hair changed some impressions while leaving others relatively stable. Hair doesn’t seem to produce one general positive or negative impression. Different characteristics seem to cue different assumptions.

Hair Color and Personality

Hair color can also affect judgments that have little obvious connection to hair. For instance, Swami and Barrett (2011) studied men’s responses to the same woman presented with different hair colors. In a nightclub setting, men approached her more often when she was blond. But when another group of men rated photographs of her, the brunette version was judged as more attractive, intelligent, approachable, and competent. The blond version was also rated as more needy.

Matz and Hinsz (2018) likewise found that women’s hair color and length influenced judgments about age, health, attractiveness, relationship potential, and perceived parenting capability. In their study, lighter hair was generally associated with greater youth, health, and attractiveness.

Could Some Hair Inferences Be Right?

First Impressions Essential Reads

How Does Visible Disability Affect Attractiveness?

How to Form First Impressions and Perceive Intention

Not every inference from appearance is necessarily wrong. People choose hairstyles for reasons, and their choices can reflect preferences, identity, or even aspects of personality.

In one study of 308 young women, those with short hair scored somewhat higher on fun-seeking, while women who dyed their hair scored higher on extraversion, openness, and emotional stability (Seo & Jeong, 2009). But the overall relationships between hairstyle and personality were weak, and hairstyle explained very little of the variation in personality.

Broader research on first impressions suggests that people can sometimes make above-chance personality judgments from appearance. Naumann and colleagues (2009), for example, found that observers viewing full-body photographs could judge traits such as extraversion with some accuracy, partly because appearance contains cues people choose, like clothing and grooming, as well as expressive cues such as posture and facial expression.

So a hairstyle may occasionally tell you something real about the person who chose it. The problem is when we over-interpret what we are seeing. Hair can provide a clue, but it’s a very small sample of evidence from which to infer an entire personality. In fact, although many people take great pride in their appearance, especially their hair, some of its characteristics are not easy to alter. Ethnicity, gender, and age are common factors that determine the appearance of our hair and have little to do with personality.

From Hair to Person

Yet, hair matters because it’s highly visible, changeable, and often specifically chosen. A haircut, color, texture, or decision to let hair turn gray can alter the impression we make before we even say a word.

That’s what makes hair inferences interesting. We notice a real cue and build a larger picture of the person from it. Sometimes that picture may be partly accurate. Sometimes it reflects stereotype or expectation. The next time you form an immediate impression of someone, it may be worth asking how much of it came from the actual person and how much came from their hair.

Copyright 2026 Tara Well PhD