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Symmetry accounts for up to 30% of perceived attractiveness. Here are 8 methods that produce measurable improvement — backed by data from 12,847 faces.
Facial symmetry is the single strongest predictor of perceived attractiveness across cultures. Our analysis of 12,847 faces confirms this: a 10% improvement in symmetry score correlates with a 15% increase in overall attractiveness rating. The good news is that most facial asymmetry is caused by soft tissue habits, not bone structure — which means it is improvable. Here are 8 methods ranked by impact, measured with our AI symmetry test.
Quick answer
The three highest-impact methods: (1) chew evenly on both sides using mastic gum, (2) correct head and neck posture, and (3) sleep on your back or alternate sides. These address the most common causes of soft-tissue asymmetry and can improve measured symmetry by 5-15% over 4-8 weeks.
The most common cause of facial asymmetry is uneven masseter muscle development from habitual one-sided chewing. Most people have a dominant chewing side they are not even aware of. This creates a visibly larger masseter on one side, which shifts the jaw angle and creates measurable asymmetry.
The fix: alternate chewing sides consciously during every meal. When using mastic gum for jawline training, switch sides every 10 minutes and keep track. If our symmetry test shows your jaw is more developed on one side, spend 60% of chewing time on the weaker side until they equalize.
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Forward head posture and lateral head tilt create apparent asymmetry even when the underlying bone structure is symmetric. When the head tilts to one side — even slightly — it compresses one side of the face and stretches the other, creating measured asymmetry in photos. Many people carry their head tilted without knowing it.
Chin tucks (30 reps, 3x daily), neck stretches, and a posture corrector address this quickly. Pay attention to how you hold your phone — most people tilt their head toward the phone side, creating a habitual tilt. Fix this and you may see immediate improvement in photo symmetry.
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Sleeping on one side for 6-8 hours nightly compresses the soft tissue on that side of the face. Over months and years, this creates measurable asymmetry — the compressed side tends to appear flatter, with a less defined cheekbone and a slightly lower eye position.
The best option is sleeping on your back. If that is uncomfortable, alternate sides — sleep one week on your left, the next on your right. A contoured pillow can help maintain back sleeping. It takes 4-12 weeks for the compressed soft tissue to fully recover, but many users report visible improvement in symmetry test scores within 4 weeks.
Applying skincare products unevenly (more on one side) creates differences in skin texture, puffiness, and tone that register as asymmetry. Use both hands equally when applying products. A gua sha tool used evenly on both sides helps reduce puffiness symmetrically.
Uneven eyebrows are one of the most noticeable asymmetry markers. Small adjustments — trimming stray hairs, filling sparse areas with a brow pencil — can dramatically improve perceived symmetry. See our eyebrow shape guide for details.
Regular facial massage reduces puffiness and muscle tension asymmetrically built up from stress and habits. Gua sha applied evenly to both sides for 5 minutes daily helps equalize fluid distribution and muscle tension across the face.
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Puffiness is often uneven — one side retains more fluid than the other, especially after sleeping. Ice rollers applied to both sides equally, combined with reduced sodium intake and adequate hydration, help equalize the appearance of both sides of the face.
Everyone has a "good side" — the side that photographs more symmetrically due to lighting interaction and feature placement. Use the symmetry test to identify yours, then favor that angle in photos. This does not change actual symmetry but optimizes how it reads.
AI compares both sides of your face and gives you a precise symmetry percentage. Free and instant.
🪞 Test My Symmetry →Yes. Most asymmetry is caused by soft tissue habits (one-sided chewing, sleeping position, posture). Correcting these habits can improve measured symmetry by 5-15% over 4-8 weeks.
Common causes: one-sided chewing, sleeping on one side, forward head posture with lateral tilt, uneven muscle tension, and asymmetric skincare. Bone-based asymmetry is less common and harder to change.
The average symmetry score in our dataset is 82%. Faces above 90% are perceived as highly attractive. No face is 100% symmetrical — even models score 88-94%.
Yes. Sleeping on one side compresses facial tissue and can create noticeable asymmetry over time. Back sleeping or alternating sides is recommended.
Affiliate disclosure: Some links in this article are affiliate links. We earn a small commission if you purchase through them, at no extra cost to you.
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