The mewing before and after photos you see online are some of the most debated images in the looksmaxing community. Some show dramatic jawline transformations. Others show barely perceptible changes. So what does mewing actually do — and what can you realistically expect if you start today?

This article cuts through the hype. You'll get an honest breakdown of mewing before and after results, a realistic timeline at 1 month, 3 months, 6 months, and 1 year, and the key factors that determine whether you'll see meaningful changes. Whether you're a teenager whose facial bones are still growing or an adult looking to optimize your appearance, this guide gives you the unvarnished truth.

What Mewing Actually Changes

Before diving into timelines, it's critical to understand what mewing can and cannot do. Mewing — the practice of resting your entire tongue flat against the roof of your mouth with lips sealed and nasal breathing — primarily influences three things:

  • Oral and tongue posture: Your default resting tongue position shifts from the bottom of the mouth to the palate
  • Breathing patterns: Mouth breathing is replaced with nasal breathing, which has documented health benefits
  • Head and neck alignment: Forward head posture is corrected as proper tongue posture encourages a more balanced cervical position

What mewing cannot do is fundamentally restructure adult facial bones. Once your craniofacial growth is complete — typically by age 18-21 — your bone structure is largely set. Mewing can still improve your appearance through better posture and breathing, but it won't create a new jawline from scratch. For a deeper dive into technique and the science behind it, read the complete mewing and jawline exercises guide.

Factors That Affect Your Mewing Results

Not everyone gets the same results from mewing. Several variables determine how dramatic your before and after changes will be:

Age and Facial Growth Status

This is the single most important factor. Adolescents whose facial bones are still growing have the highest potential for structural change from mewing. The palate and maxilla are more malleable during development, meaning consistent tongue posture can influence how the face grows. Adults past facial growth completion are limited to soft tissue and postural improvements.

Consistency and Duration

Mewing is a resting posture, not an exercise. The goal is to make correct tongue posture your default position — maintained for hours every day, not just during dedicated practice sessions. Sporadic mewing produces no results. Consistent, all-day tongue posture maintained for months is the minimum requirement for any visible change.

Starting Oral Posture

If you currently mouth-breathe, rest your tongue at the bottom of your mouth, and have forward head posture, your "before" baseline is further from optimal — meaning more potential improvement. If you already have decent tongue posture and nasal breathing, your results will be less dramatic.

Body Fat Percentage

Your jawline visibility is primarily determined by body fat percentage. If you carry excess facial fat, mewing alone won't create a sharp jawline. Reducing body fat through diet and training will reveal your bone structure far more than tongue posture ever could. For the full picture, read jawline definition beyond mewing.

Mewing Timeline: What to Expect

Here's a realistic breakdown of what you might experience at each stage of your mewing journey. These timelines assume daily, consistent practice — correct tongue posture maintained as a default resting position, not just a few minutes here and there.

Weeks 1-4: Building the Habit

What you'll feel:

  • Conscious effort required to maintain tongue posture — it won't feel natural yet
  • Mild fatigue in tongue and facial muscles as they adapt to the new position
  • Increased awareness of mouth breathing episodes
  • Possible improvement in nasal breathing, especially if you previously mouth-breathed
  • Better head posture awareness — you'll catch yourself jutting your chin forward

What you'll see:

  • Minimal to no visible changes in facial structure
  • Possibly slightly improved head and neck posture in photos
  • Better lip seal at rest (if you previously had parted lips)

Before and after at 1 month: The main change is behavioral, not physical. You're building the habit. Take your first "after" photo at the 4-week mark under the same lighting and angle as your before photo. You may notice slightly better resting posture, but structural changes haven't had time to manifest.

Months 1-3: Early Changes

What you'll feel:

  • Tongue posture becoming more automatic — less conscious effort needed
  • Natural nasal breathing becoming default
  • Improved head and neck alignment — standing taller without thinking about it
  • Better swallowing pattern — tongue pressing against palate rather than thrusting forward

What you'll see:

  • Subtle improvement in resting facial posture — lips closed, relaxed jaw position
  • Potential slight reduction in "mouth breather" appearance (open mouth, elongated face)
  • Marginally better chin position in profile photos due to improved head posture
  • For adolescents: early signs of improved maxillary development may begin

Before and after at 3 months: Side-by-side photos may show slightly better resting posture and marginally improved chin/neck angle. The changes are subtle — friends and family probably won't notice. The most visible difference is usually in head posture, not jawline structure.

Months 3-6: Noticeable Shifts

What you'll feel:

  • Mewing feels natural — tongue automatically rests on the palate
  • Significantly less mouth breathing, even during sleep
  • Reduced forward head posture — neck feels more aligned
  • Possible slight increase in masseter muscle engagement from better jaw posture

What you'll see:

  • Improved resting facial posture is now visible in photos — closed lips, relaxed expression
  • Better head and neck angle in profile — chin appears slightly more defined due to posture
  • For adolescents: continued craniofacial development benefits, potentially wider maxillary arch
  • For adults: the main visible changes are postural — better head carriage improves the appearance of the jaw and chin area

Before and after at 6 months: This is where side-by-side comparisons start to show real differences, particularly in profile. The changes are predominantly from improved head posture, lip seal, and better resting jaw position — not from bone restructuring in adults. If you also lost body fat or started exercising during this period, those changes will be more dramatic than mewing alone.

Months 6-12: Compounding Effects

What you'll feel:

  • Correct tongue posture is fully habitual — you mew without thinking about it
  • Nasal breathing is your default, including during exercise and sleep
  • Head posture is consistently better — forward head posture is largely corrected

What you'll see:

  • For adults: visible improvements in resting facial posture, head alignment, and lip seal. The jawline may appear slightly more defined due to better head carriage and reduced submental fullness from improved neck posture
  • For adolescents: potentially meaningful structural changes including wider dental arch, more forward-positioned maxilla, and improved facial symmetry — if mewing has been consistent throughout growth
  • Combined with body fat reduction: the best "before and after" results come from adults who mew consistently and reduce body fat. The mewing improves posture and oral habits; the fat loss reveals the bone structure

Before and after at 12 months: One year of consistent mewing produces the most noticeable changes in adults. Profile photos show better head posture, improved chin position, and a cleaner jawline appearance. Front-facing photos may show slightly better facial balance. For teens, structural changes may be more pronounced. However, if you compare a 12-month mewing-only transformation to someone who did mewing plus fat loss plus resistance training, the combined approach wins by a wide margin.

Beyond 12 Months: Long-Term

For adolescents who continue mewing throughout their growth years, the long-term benefits can include better facial development, wider dental arches, and improved facial symmetry. For adults, the benefits plateau at improved posture, breathing, and oral habits — which are still valuable but won't produce dramatic structural changes. The mewing before and after difference for long-term adult practitioners is best described as "better resting posture and slightly more defined jaw area" rather than "completely different face."

How to Take Good Before Photos for Mewing

If you want to track your mewing results objectively, proper before photos are essential. Poor photos make it impossible to see subtle changes.

  • Lighting: Use the same lighting every time. Natural daylight from the front is best. Avoid harsh side lighting or shadows
  • Distance: Stand the same distance from the camera. Use a tripod or mark your foot position on the floor
  • Angles: Take three photos — front, left profile, and right profile. Keep your head level and relaxed (not mewing for the photo — capture your default state)
  • Expression: Neutral, relaxed face. No smiling, no flexing. Mouth in its natural resting position
  • Frequency: Take new photos monthly. Compare side-by-side using the same lighting and distance
  • Camera: Use the same camera/phone each time. Different focal lengths distort facial proportions differently

Maximizing Your Mewing Results

If you want the best possible mewing before and after outcome, mewing alone isn't enough. Stack it with complementary practices:

Reduce Body Fat

This is the single most impactful thing you can do for jawline visibility. A sharp jawline at 12% body fat looks dramatically different from the same jawline at 22% body fat. Mewing won't change this equation. Prioritize a caloric deficit, resistance training, and adequate protein. For a structured approach, see the diet for glow up guide.

Fix Forward Head Posture

Forward head posture (nerd neck) undermines mewing and makes your jawline look worse. Your tongue posture and head posture are linked — you can't mew properly with a jutting chin. Practice chin tucks and posture correction exercises alongside mewing for compounded benefits.

Add Jawline Exercises

Targeted jawline exercises can strengthen and slightly enlarge the masseter muscles, adding definition to the lower face. Combine mewing (posture) with jawline exercises (muscle) for the best non-surgical jawline optimization. See the mewing and jawline exercises guide for the full protocol.

Choose the Right Hairstyle

Your hairstyle frames your jawline. A fade or undercut that exposes the jaw area can make it look sharper. Longer hair that covers the sides can soften the jaw. For hairstyle recommendations by face shape, check the best hairstyles for a glow up guide.

Red Flags in Mewing Before and Afters

When evaluating mewing before and after photos online, watch for these misleading elements:

  • Different lighting: Shadows can create or eliminate jawline definition. If the before photo is in flat lighting and the after is in directional lighting, the "transformation" is partly photography
  • Different angles: Slightly tilting the head down in the "after" photo makes the jawline look sharper. Camera angle matters enormously
  • Weight loss: Many mewing transformations coincide with significant weight loss. The jawline change is primarily from fat loss, not tongue posture
  • Age progression: If the "before" is at age 14 and the "after" at 18, normal facial maturation accounts for much of the change
  • Different facial expressions: Relaxing the face vs. clenching the jaw changes the jawline appearance dramatically
  • Surgery or fillers: Some transformations involve jawline filler, chin implants, or orthognathic surgery — not mewing

Always evaluate before and after photos with a critical eye. The most reliable transformations show consistent lighting, camera distance, angle, and expression — with no other major lifestyle changes between photos.

The Honest Verdict

Mewing before and after results are real but often exaggerated online. Here's the honest summary:

  • For adults: Expect better oral posture, nasal breathing, and head alignment. Visible jawline changes are subtle and take 6-12+ months. Mewing is a worthwhile addition to your looksmaxing stack but not a game-changer on its own
  • For adolescents: Meaningful structural changes are possible during facial growth years, especially with consistent practice. The earlier you start (within reason), the more potential for influence
  • For everyone: The best mewing before and after results come from stacking mewing with body fat reduction, jawline exercises, posture work, and good grooming. Mewing is one tool, not the entire toolkit

If you're tracking your looksmaxing journey, use the Luxmax app to log daily mewing consistency alongside your skincare, fitness, and grooming habits. Consistency tracking is the single best predictor of whether you'll see results — and the app makes it effortless.

Download LuxMax Free

Frequently Asked Questions

Can adults see visible mewing before and after results?
Adults can see modest improvements from mewing, primarily in tongue posture, nasal breathing, and head alignment. Visible jawline changes in adults are typically subtle and take 6-12+ months of consistent practice. Dramatic structural transformations shown online are usually from adolescents, involve weight loss, or use different angles and lighting.
How long before I see mewing results?
For adults, posture and breathing improvements can be felt within 2-4 weeks. Visible changes to the jawline, if they occur, typically take 6-12 months of daily consistent practice. For adolescents whose facial bones are still growing, structural changes may appear within 12-24 months.
What do realistic mewing before and after photos look like?
Realistic mewing before and after photos show subtle changes — slightly better oral posture, reduced mouth breathing, improved head alignment, and marginally more defined jawline area. They do not show dramatic bone restructuring or completely different face shapes, especially in adults.
Does mewing work better at a certain age?
Mewing has the highest potential for structural change during adolescence (ages 10-18) when craniofacial bones are still developing. After facial growth completes (around 18-21), structural changes from mewing alone are limited to soft tissue and postural improvements.
Should I take before photos for mewing?
Yes. Take front and profile photos under consistent lighting and camera distance. Photo evidence is more reliable than mirror impressions. Take new photos monthly under the same conditions to track subtle changes objectively.

Evidence-based looksmaxing guide. Last updated: June 2026.