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How to Glow Up

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By · Founder, RealSmile
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October 14, 2026
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Twelve evidence-based tips ranked by impact on perceived attractiveness. Not generic lifestyle advice — every habit ties to a specific facial metric. Skip to the 30-day checklist →

Glow Up·14 min read·March 2026

Most glow up guides are either too vague ("drink more water, get more sleep") or too specific without explaining the mechanism. This one starts from the 10 measurable facial metrics that predict attractiveness and works backward to the habits that most efficiently improve each one. Take a baseline score before you start so you can measure actual improvement — not just feel it.

Start here: get your baseline

Before starting any glow up, measure where you actually are. Run the free looksmax scan: it measures canthal tilt, FWHR, symmetry, hunter eye index, jaw taper and 12 more metrics, and shows your Face Score and strongest metric free. This tells you which habits to prioritize for maximum impact on your specific starting point. If you want a single artifact you can revisit at week 4 and week 12, pulling a longitudinal face score deliverable may help understand which habits are actually moving structural metrics versus only changing perceived skin or grooming quality.

Get my free baseline score →
Week 1

Foundation (Days 1-7)

Quick wins that produce visible changes in the first week. Prioritize these before anything else.

✓

Fix your posture — reveals the jawline you already have

Changes: how the jawline reads in photos · Visible in: 1-2 weeks

Forward head posture is the most common hidden cause of soft jawlines. The head drifting forward by even 2-3 inches compresses neck tissue over the jaw and pushes the chin downward. Correcting this with 30 chin tucks daily (draw chin straight back, hold 5 seconds) reveals the bone structure that was always there. Immediate improvement shows in photos.

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✓

Start a 3-step skincare routine

Changes: oiliness and how pores look · Visible in: 1-2 weeks

Three products cover 80% of skin improvement: a gentle cleanser twice daily, niacinamide serum in the morning (reduces pores, controls oil, evens tone), and SPF 50 every morning. That's it for week 1. Skin takes 28 days to fully cycle but oiliness and pore appearance improve within the first week of consistent use. All three are on our best looksmaxxing products list.

✓

Get a haircut that suits your face shape

Changes: how wide or long the face looks · Visible immediately

Your hairstyle is the fastest way to change perceived facial proportions. Volume on top elongates the face and reduces perceived facial width-to-height ratio for rounder faces. Tight sides with length on top works for almost every face shape. Use our free face shape test to identify your shape and choose the most flattering style. A good haircut is the single fastest "glow up" action available — literally within the hour you sit in the chair.

Know your starting point before you glow up

Your Face Score free; the report scores every metric your photo supports, with a personalized improvement plan.

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Week 2

Structure (Days 8-14)

Add these once the Week 1 habits are automatic. These produce cumulative benefits that compound through the rest of the month.

✓

Start mastic gum (masseter training)

Changes: bite force, not jaw shape · Jaw change: none in a six-month trial

Mastic gum is much firmer than regular gum, so chewing it works the masseter, the muscle at the jaw angle. Set your expectations by the best trial of chewing training: adults who chewed gum three times a day for six months gained bite force, but their masseter thickness and jaw shape did not change (Jung et al., Journal of Oral Rehabilitation, 2024). If you add it in week 2, keep sessions short, alternate sides, and stop if your jaw clicks or aches.

✓

Start a caloric deficit if above 16% body fat

Changes: how much fat covers the jaw · Visible in: 4-8 weeks

If facial fat is obscuring your jawline, no amount of exercise will fully reveal it. A 400-500 calorie/day deficit with high protein (0.8g per lb bodyweight) and resistance training starts showing facial changes in 4-6 weeks. Facial fat is often the first to respond. You don't need to get lean — dropping from 22% to 17% body fat produces dramatic facial definition improvements.

✓

Address your eye area

Changes: under-eye puffiness and brow shape · Visible in: 1-3 weeks

Under-eye puffiness makes the eyes look tired, but it does not change canthal tilt, the angle between your inner and outer eye corners. Caffeine serum morning and evening plus an ice roller in the morning is the usual de-puffing routine; it may make puffiness less noticeable, but it will not change your canthal tilt. If you have brow hairs growing downward at the outer tail, cleaning those up with a dermaplaning razor (angling the outer tail slightly upward) makes the outer eye look more lifted right away, though canthal tilt itself stays the same.

Weeks 3-4

Optimize & Compound (Days 15-30)

Additions that build on the foundation and produce results that continue well past day 30.

✓

Add retinol (2x/week, evenings)

Improves: Skin texture, tightness · Timeline: 6-12 weeks

Retinol promotes collagen production and accelerates cell turnover. Start 2x/week to avoid irritation. Results begin around week 6-8 but the long-term improvement in skin quality and jawline definition is significant. This is the highest-ROI skincare addition after your core routine is established.

✓

Add collagen peptides

Improves: Skin elasticity, jawline tightness · Timeline: 4-8 weeks

Multiple RCTs confirm collagen supplementation improves skin elasticity and hydration in 4-8 weeks. Dissolves in coffee or water. More relevant for 25+ where natural collagen production declines. Combined with retinol (which stimulates collagen from the outside) and collagen peptides (which provide raw material from the inside) produces faster skin improvement than either alone.

✓

Optimize sleep (7-9 hours, consistent timing)

Improves: Puffiness, skin quality, symmetry · Timeline: 1 week

Sleep deprivation visibly increases under-eye puffiness, skin pallor, and facial asymmetry (the face rests asymmetrically in sleep and muscles don't recover evenly). Consistent sleep timing is as important as duration — cortisol dysregulation from irregular sleep patterns directly affects facial puffiness and skin quality.

✓

Grooming audit (brows, facial hair, nails, clothing)

Improves: Overall presentation · Timeline: Immediate

Grooming is the highest-impact, lowest-cost appearance upgrade available. Clean, shaped eyebrows that follow your natural arch improve facial framing dramatically. Stubble or a beard trimmed with a clean neckline adds perceived jaw definition. Clothing that fits well and suits your body shape adds perceived height and V-taper. None of these are expensive — they just require attention.

The complete 30-day checklist

Chin tucks — 30 reps, 3x daily
Cleanser — morning + evening
Niacinamide serum — morning
SPF 50 — every morning, no exceptions
Mastic gum (optional) — short sessions from day 8
Caloric deficit — if BF% above 16
Caffeine eye serum — morning + evening
Ice roller — 5 min every morning
Consistent sleep — 7-9h, same schedule
Wall angels — 10 reps, 2x daily
Grooming audit — week 1, maintain weekly
Haircut — suited to face shape
Retinol — 2x/week from day 15
Collagen peptides — daily from day 15
Reference photos — same setup every 2 weeks
Retest facial metrics — day 1 and day 30

Measure your progress

Retest your facial metrics at day 30

Take your day-30 photo under the same conditions as your baseline. Our AI will show you exactly which metrics improved and by how much.

Test my glow up progress →

Frequently asked questions

What is a glow up?

A significant positive transformation in physical appearance involving skin, hair, body composition, grooming, posture, and style. A science-backed glow up focuses on the habits with the highest evidence for measurable improvement in the shortest time.

Can you glow up in 30 days?

Yes — meaningfully. Posture correction shows in 1-2 weeks. Skincare improvements are visible in 2-3 weeks. Haircut and grooming changes are immediate. Mastic gum trains bite force, but in a six-month trial gum chewing did not change masseter thickness or jaw shape. Body fat changes begin showing facially in 4-6 weeks. The full 30-day stack produces a meaningful visible change for almost everyone who completes it consistently.

What order should I start the glow up habits?

Week 1: posture, basic skincare (cleanser + niacinamide + SPF), haircut. Week 2: add mastic gum, caloric deficit if applicable, eye area care. Weeks 3-4: add retinol, collagen peptides, optimize sleep consistency. Don't try to start everything at once — habits stack better when they're layered in.

How do I measure glow up progress objectively?

Reference photos under consistent conditions (same lighting, camera, time of day) every 2 weeks. Combined with our looksmaxxing test at the start and end of each 30-day period for objective metric measurements. Subjective self-assessment is unreliable during transformation as your internal baseline shifts.

Affiliate disclosure: Some links are affiliate links. We earn a small commission at no extra cost to you. All product recommendations are based on evidence review.

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Put the guide into practice

Start with your free Face Score.

Scan one photo for your Face Score and strongest available measurement. See an example of the optional $14.99 one-time report, including its supported measurements and four-week photo plan, before deciding.

R
RandyFounder, RealSmile

Built RealSmile after testing every face analysis tool and finding most give fake scores with no methodology. Background in computer vision and TensorFlow.js. Has analyzed peer-reviewed reference data and published open research data on facial metrics.