The strongest evidence for a prettier-reading face comes from sleep, daily sunscreen, and a retinoid, each tested in controlled trials. Facial exercises do not reshape bone. Every lever below is ranked by evidence.
The Short Version
What "Prettier" Actually Means, and How We're Grading It
Prettier, in the research sense, means rested eyes, even skin tone, and good framing, not different bone structure, and every claim on this page is graded by how strong its evidence actually is.
Researchers studying facial attractiveness rarely mean a reshaped bone structure. Some readers know this same question by its newer name, a 'glow up.' Across the studies below, raters respond most consistently to rested-looking eyes, even skin tone, healthy color, and features that frame well together, never to a different jaw or nose. That distinction sets the boundary for everything ranked on this page: changes that affect how a face reads, not changes to the geometry underneath it.
Every intervention below carries one of four evidence grades, stated once here and then applied to each row of the table. Strong means a controlled trial tested the change directly against attractiveness ratings. Moderate means the effect is real and quantified but comes from a smaller or observational study. Styling heuristic, not clinical science means professional styling practice supports the claim, not peer-reviewed research. Contested-none means no reliable evidence supports the claim at all, and this page names that plainly instead of softening it.
That is what the evidence says, row by row, and the grade travels with every claim on this page, so no statement stands without its source.
The Evidence-Ranked Table: Every Change We Could Verify
Every intervention on this page is scored on the same four-tier scale, from controlled-trial evidence down to no evidence at all, in one table. The rows below cover thirteen changes across five categories, sleep, body composition, skin, grooming and presentation, and styling, the same order this page follows section by section. Each row states what the change affects, how fast it shows up, and the study behind the grade, so no ranking here rests on narrative order alone.
| Category | Intervention | Evidence Grade | What It Changes | How Fast | Citation |
|---|---|---|---|---|---|
| Sleep | Sleep, 7-9 hours nightly | Strong | Under-eye darkness, puffiness, skin dullness | Days | [1][2] |
| Body composition | Diet: more fruit and vegetables | Moderate | Skin's golden, healthy color cast | 6 weeks | [3] |
| Body composition | Hydration | Weak | General skin function only | Not established | No controlled trial |
| Skin | Daily broad-spectrum sunscreen | Strong | Rate of visible skin aging | Years, compounding | [4] |
| Skin | Retinoid most nights | Moderate | Fine lines, tone, texture | 12-24 weeks | [5] |
| Grooming | Camera distance and angle | Strong | Perceived proportion and size | Immediate | [6] |
| Grooming | Brow shaping | Moderate | Balance of eye area and upper face | One appointment | [7] |
| Grooming | Makeup, if wanted | Moderate | Skin tone evenness, eye and lip contrast | Immediate | [8] |
| Grooming | Smile and expression | Strong | First-impression rating | Immediate | [9] |
| Styling | Hairstyle by face shape | Styling heuristic | Visual balance of face shape | One appointment | Heuristic, no trial |
| Styling | Color and undertone | Styling heuristic | How skin tone reads next to color | Immediate | Heuristic, no trial |
| None | Facial exercises and mewing | Contested-none | Nothing measurable | Not applicable | No reliable evidence |
| None | Jade rollers and gadgets | Contested-none | Short-lived fluid movement only | Minutes | No reliable evidence |
Sleep 7-9 Hours
Sleep is the only change on this list tested directly against attractiveness ratings in a controlled experiment, and it is free. A Karolinska Institute study published in BMJ photographed the same people after a full night of sleep and again after sleep deprivation, then had untrained raters score both sets blind [1]. The sleep-deprived photos scored significantly lower on both attractiveness and health, same faces, same lighting, same day of week. A 2017 follow-up in Royal Society Open Science found that two nights of restricted sleep alone lowered strangers' attractiveness ratings and their stated willingness to socialize with the photographed person [2].
What it changes: under-eye darkness, eyelid puffiness, and skin dullness, the cues a rater notices first. How fast: days. Sleep ranks first for a boring reason: it is the only item tested this directly, and it costs nothing.
Body Composition and Health Basics
Body composition, on this page, means diet and hydration only: general health inputs that show up in the face, not weight or body-composition targets. The two items ranked here are food and water intake exactly as they affect skin, nothing broader.
Diet: Fruit and Vegetables
Diet-driven skin color change is measurable within weeks. A University of St Andrews study published in PLoS ONE tracked participants' diets and facial skin color over six weeks. Increasing fruit and vegetable intake produced a measurable, visible shift toward a healthier skin color, driven by carotenoids, the pigments in colorful produce [3]. A follow-up study found roughly three additional daily portions was enough for outside raters to perceive the change.
What it changes: the subtle golden, healthy cast of skin that raters consistently rate as more attractive. How fast: six weeks. Grade: Moderate, a real and quantified effect from a tracked-diet study, not yet a large randomized trial.
Hydration
Hydration's effect on how attractive a face reads is real for skin function but thin as a direct attractiveness claim. Skin-hydration claims are common in beauty media, yet no controlled study on this page's reference list ties water intake directly to rated attractiveness. Staying hydrated supports skin function generally, and that is the honest extent of the claim.
Grade: Weak, one step below the diet item above, stated plainly rather than rounded up to make this page feel more complete.
Skin: Sunscreen and a Retinoid
Daily sunscreen has the best trial evidence of any single skincare step. A randomized trial published in Annals of Internal Medicine followed 903 adults for four and a half years, assigning half to daily broad-spectrum sunscreen and half to occasional use [4]. The daily-use group showed 24 percent less measurable skin aging over the study period than the occasional-use group, a result no serum or supplement has matched in a trial of comparable size and duration.
What it changes: the rate skin visibly ages, texture, mottled pigmentation, and fine lines. How fast: years, since the effect is preventive and compounds over time. The practical version is SPF 30 or higher, broad-spectrum, every morning, cloudy days included.
Retinoid Most Nights
A retinoid is the most-studied topical active for tone and texture, on a three-month timeline. A 2025 network meta-analysis pooling 23 randomized trials and 3,905 participants found tretinoin significantly improved fine wrinkles and ranked among the best options for uneven pigmentation, with a favorable safety profile [5]. Retinol and adapalene, both available without a prescription, show the same pattern of improvement at a smaller scale.
What it changes: skin texture, tone evenness, and fine lines, not deep wrinkles or facial structure. How fast: trials measure at 12 to 24 weeks. Start two to three nights a week, pair every morning with sunscreen, and skip it entirely if pregnant or breastfeeding, a question for a dermatologist rather than this page. The full skin-quality chapter covers the shared skin-color research behind this item and the diet item above.
Grooming and Presentation: Camera, Brows, Makeup, Expression
Camera distance measurably distorts how a face reads before any of the rest of this list even applies, and it costs nothing to fix. A study published in JAMA Facial Plastic Surgery compared portraits taken at 12 inches against portraits taken at 5 feet. The close-distance photos measurably widened perceived nasal size and distorted facial proportions [6], the same short distance a phone selfie uses by default.
What it changes: the perceived proportions in any photo used to judge a face, including the one that produced today's rating. How fast: immediate, the moment the next photo is taken. This is arguably faster than sleep: it changes nothing about the face and everything about how it is captured.
Brow Shaping
Brow position and shape carry more of a face's framing than most people credit. Research on eyebrow position and shape, published in Aesthetic Plastic Surgery, found consistent rating preferences tied to brow position, with the preferred shape shifting by the age of the person judging [7]. The practical consensus across that literature: fuller, groomed brows read as younger than thin, over-plucked ones.
What it changes: how balanced the eye area and upper face read. How fast: one appointment. Shape follows the face's own dominant lines, not a trending shape, and regrowth after years of over-plucking takes months, so start now and fill sparsely in the meantime.
Makeup, If You Want It
Makeup is one of the better-studied levers on this page, and using it stays entirely a choice. A study affiliated with Harvard, published in PLoS ONE, tested the same faces with and without professionally applied makeup and found makeup significantly raised both rated attractiveness and perceived competence [8]. It works through the same mechanism as the skin items above: evening out tone and raising the contrast of eyes and lips against skin.
What it changes: skin tone evenness and eye and lip contrast, immediately. How fast: immediate. Every skin and sleep item ranked above this one reduces how much of that effect the same face needs from makeup, so this stays optional, never an obligation.
Smile and Expression
A genuine smile can outweigh neutral-face geometry in a paired comparison. Experiments published in Cognition and Emotion found that smile intensity strongly influenced which of two faces raters judged more attractive, to the point that a happy expression compensated for a face rated lower when neutral [9]. Dating-photo research repeats the pattern: warmth and a genuine smile predict a stranger's response better than measured geometry alone.
What it changes: nearly every first impression that follows, photos included. How fast: immediate. Camera distance aside, this is the fastest, cheapest lever ranked on this page.
Styling: Hairstyle by Face Shape, Color by Undertone
Matching a hairstyle to your face shape is a professional styling heuristic, not clinical science, useful, but not evidence in the same sense as the items ranked above it. The underlying principle is visual balance: a style counters the face's dominant dimension. A round face gains from height and length, a long face gains from width or a fringe, and a square jaw softens under layers. A free face shape detector on this site classifies the shape from one photo, and the site's Preview Credits let you generate an AI preview of a new style before committing to a cut.
What it changes: how the face's proportions read at a glance. How fast: one appointment. This is styling practice refined over decades, not a peer-reviewed finding, and it is labeled that way on purpose.
Color and Undertone
Color and undertone matching is a styling heuristic, not clinical science, the same honest caveat that applies to hairstyle matching above. The framework sorts skin into warm or cool undertones and high or muted contrast, then recommends the adjacent colors, on clothing, scarves, or hair, that harmonize with that undertone rather than fight it. A dedicated color-analysis page on this site covers the full twelve-season version of this framework.
What it changes: how skin tone reads next to the color directly beside it. How fast: immediate, testable by holding two different tops under your chin in daylight.
What Doesn't Move It
Facial exercises and mewing have no reliable evidence of changing bone structure, and gadgets that promise permanent change move fluid temporarily at best.
- Facial exercises and mewing for jaw or bone structure. Adult bone does not remodel from tongue posture or facial exercises, and no reliable study shows exercises change bone structure or symmetry. Every symmetry exercise, individually evidence-graded, and jawline exercises, honestly graded, get the full component-by-component treatment on their own dedicated pages, along with the chewing-gum jawline claim, checked against the evidence.
- Jade rollers, gua sha, and similar gadgets. These move fluid and can reduce morning puffiness for a few hours, a real but short-lived effect, never a structural one.
- Comparing your face to others online. If checking photos or comparing your face to others is affecting your mood or your day, that is worth taking to a professional rather than to a routine, stated plainly and without judgment.
If that comparison is what brought you to this page, the National Alliance for Eating Disorders runs a free helpline for exactly that, and it takes calls about body image generally, not only about eating. One person you trust counts too.
How Would You Actually Know Any of This Worked?
None of this is checkable without a baseline, which is what the free test on this site is for. Everything ranked above answers what to try. This section answers a different question: how do you know whether any of it moved the needle on your own face, and what a moved number actually tells you. You cannot grade whether something worked without a before number to compare it against.
How to Confirm It: Start With the Free Test
Confirming a change starts with a baseline, not a before-and-after guess. Everything ranked above this line changes what to try; this section is how to know if it worked. The am-I-pretty test is this page's natural first stop: measure your baseline first: the am-I-pretty test scores a photo in seconds, on-device, and photos never leave your browser. For every measured component at once, measure your baseline first with the full attractiveness test, the broader instrument behind the same attractiveness score. Retake either one after a change, using the same photo conditions, and compare the two numbers rather than the two faces.
What Changes, and How Fast
Camera distance and sleep move fastest; sunscreen's payoff compounds over years. The table above sorts every change by speed as well as evidence, and the two ends of that sort matter most in practice. Camera distance and sleep return a different number within a single day, while sunscreen's benefit stays invisible day to day and only shows up as less aging measured years later. Diet sits in the middle, visible within six weeks, and a retinoid needs a full three months before judging it.
What Doesn't Change
About half of any single rater's judgment is private taste that no ranked list can move, and this page says so plainly. Research on attractiveness ratings finds that individual taste accounts for roughly half the variance in how any one face gets scored, a real limit no ranking, ours or anyone else's, resolves. Bone structure does not move at all on this list, and one photo remains one data point, never a verdict on a person.
None of this changes how anyone who already knows you sees you. Expression, warmth, and everything a face does in conversation sit outside every item ranked above, and that is what the people around you actually respond to.
The citations below are the controlled trials and studies behind this page's evidence grades, numbered in the order they appear above. Every other claim on this page is labeled a styling heuristic or a claim with no reliable evidence, stated as plainly as the research that backs the rest.
Not medical advice. This page ranks non-surgical changes by evidence; it is not a diagnosis, a clinical assessment, or a substitute for a dermatologist or a mental health professional.