FIND YOUR LEVEL IN 10 SECONDS.

Answer 3 fast questions and we’ll recommend the best resistance tier for your current level and goal.

Step 1 of 3 Habits

How often do you chew gum or tough foods?

How would you describe your current jaw definition?

What's your primary goal?

MAXIMUM RESISTANCE

30–50 lbs of jaw-specific resistance in a single device.

ZERO COMPROMISE

No gimmicks, no filler features. Pure progressive overload for the masseter muscle.
HIGH PERFORMANCE JAWLINE

HIGH PERFORMANCE JAWLINE

The only device engineered for progressive jaw resistance. Built for men who train everything — including their face.
GET STARTED
60-day money-back guarantee

PROVEN RESISTANCE CURVE

Mirrors the progressive overload model used in elite gym training.

SCIENTIFICALLY BACKED

Targets the masseter muscle — the strongest in the human body by weight.

MODERN DIETS MADE OUR FACES SOFT.

Our ancestors chewed hard roots and tough meats for 200,000 years. That jaw resistance built dense masseter muscles and sharp mandibular angles. The modern diet removed that resistance entirely. Jawzrsize restores it.

ANCESTRAL DIET

Hard meats, roots, fibrous foods requiring intense chewing resistance.

MODERN DIET

Soft processed foods requiring almost no chewing resistance.
The masseter generates up to 200 lbs of force — yours is running at 10%.
Ferretti et al., Journal of Anatomy

The smart, serious choice

THE PROGRESSIVE OVERLOAD SYSTEM.

You wouldn’t bench press your max on day one. Don’t train your jaw any differently. Our 3-tier system mirrors the progressive overload protocol used in elite strength training — applied to the masseter. Get the full system. Never plateau.

72% of men choose the full system
Bundle saves $14.30 vs singles
Tier 1 20 lbs

Pop 'N Go - Level 1

20 lbs resistance
Pop 'N Go - Level 1
$57.33 $42.99
Ideal for Beginners

A beginner Pop N Go (lowest resistance) is a soft, low-resistance jaw exerciser designed to gently build strength and endurance while helping new users get comfortable with proper form.

Tier 2 30 lbs

Pop 'N Go - Level 2

30 lbs resistance
Pop 'N Go - Level 2
$57.33 $42.99
Ideal for Intermediate

An intermediate Pop N Go offers moderate resistance to build strength and endurance while challenging your jaw muscles as you progress beyond the beginner level.

Tier 3 40 lbs

Pop 'N Go - Level 3

40 lbs resistance
Pop 'N Go - Level 3
$57.33 $42.99
Ideal for Advanced

An advanced Pop N Go delivers high resistance to maximize jaw strength and definition, designed for experienced users ready for an intense workout.

Recommended Most Popular

Best value bundle

Total Transformation Kit

Start where you are, progress when ready, and keep overload built into the system instead of stalling out.

Total Transformation Kit
$143.34 $114.67
Save $14.30
Ideal for Full progression system users
Reps / day Progress across all tiers
Why it wins Best value vs buying separately

What Our Community Is Saying

4.7
Rated 4.7 out of 5 stars
4.7 Stars (5,610 Reviews)

Based on 1,287 reviews

5★
1080
4★
141
3★
39
2★
16
1★
11
Beginners Bundle

Beginners Bundle

30 servings ★ 4.8 1287 verified reviews

Skip or cancel anytime

4.7
Rated 4.7 out of 5 stars
Based on 5,610 reviews
Total 5 star reviews: 4.3k Total 4 star reviews: 1.1k Total 3 star reviews: 150 Total 2 star reviews: 14 Total 1 star reviews: 28
97%would recommend these products
5,610 reviews
  • F Profile picture for Felicity
    Felicity
    Verified Buyer
    Reviewing
    Ladies Pack
    I recommend this product
    Rated 5 out of 5 stars
    6 days ago
    The best facial trainer I've experienced in years

    I've been looking for something like this this devise for years as I know there is only so much creams can do to tone/ plump the skin. It makes sense to train the muscles in your face the same as you do in your body. It's very easy and intuitive to use with 'top' written above the indentation when you put your teeth. I like the ability to increase the resistance with the Blue devise like you would switch out weights at the gym. The app is what got me hooked and motivated to train at least daily. You get a countdown from 60 seconds and the last 10 are killer but seeing the time going down keeps me going. I love how theres a community vibe with a leaderboard so it's like you are all doing it together. My jawline and lower face are looking and feeling firmer and I can't recommend this highly enough.

  • L
    Lave
    Reviewing
    Total Contouring Kit
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    Fav new tool

    ive only made it up to the larger pink one so far but I feel it working and im excited to keep moving up and hopefully see more results

  • LL
    Loi L.
    Verified Buyer
    Reviewing
    Guys Pack
    I do not recommend this product
    Rated 2 out of 5 stars
    1 month ago
    Resort of product

    Product got tear after one month

  • LJ
    Lars J.
    Verified Buyer
    Reviewing
    Total Transformation Kit
    I recommend this product
    Rated 4 out of 5 stars
    4 months ago
    The product

    I like it, when I browsing on my phone or watching tv, i use it.

    Think about to switch to next, I started from the softest.

  • RS
    R s.
    Reviewing
    Jawzrgum - Mint Flavor 40 Pieces
    I recommend this product
    Rated 5 out of 5 stars
    6 months ago
    Best gum on the market

    I always chew gum when working out and this is my go to. Strengthens your jaw while working out and balancing your TMJ. It’s also great for not grinding your teeth when doing heavyweight.

60

DAY MONEY-BACK GUARANTEE

TRY IT FOR 60 DAYS. RISK-FREE.

If you don't see real changes in your jawline definition within 60 days, we refund every cent. No fine print. No hoops.

Brandon Harris

A note from the founder

Brandon Harris

We built this to give men a simple, structured way to train the masseter without guesswork. That’s why we back it with a real 60-day guarantee.

Start: 2 sets × 10 reps. Build to 3 × 20 over 30 days. Results visible at 3–4 weeks.

START MY TRANSFORMATION — SHOP NOW

Join 10,000+ men · Free shipping today.