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 $14.64 vs singles
Tier 1 20 lbs

Pop 'N Go - Level 1

20 lbs resistance
Pop 'N Go - Level 1
$58.72 $44.03
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
$58.72 $44.03
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
$58.72 $44.03
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
$146.81 $117.45
Save $14.64
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 (5,625 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 5,625 reviews
97%would recommend these products
Write a Review (Opens in a new tab)
5,625 reviews
  • CJ
    Chad J. M.
    Verified Buyer
    Reviewing
    Pop 'N Go
    I recommend this product
    Rated 5 out of 5 stars
    6 days ago
    Boom! It’s fitness for your face baby! Get it!💪

    Boom! It’s fitness for your face baby! Get it!💪

    Make Jawzrsize a part of your healthy lifestyle.

    Remember you’re worth it and it’s worth it.🔥💯

    Was this helpful?
  • JM Profile picture for Jay M.facebook logo
    Jay M.
    Verified Buyer
    Reviewing
    Pop 'N Go - Level 1
    I do not recommend this product
    Rated 1 out of 5 stars
    2 weeks ago
    Broke through in one week

    Unfortunately I must say I’m very disappointed. After using gum for months to strengthen and sculpt my jaw I was excited to try this. I paid full price, it took forever to get here and then it worked great … until! Until it broke through that is. As a model I’ve been looking for things constantly to enhance my jaw line. And as a 50+ male model I need every edge I can over these young handsome whipper snappers. So… not happy! Great idea and it seemed to be working very well but alas! So what do I do now? I guess it could be made into a craft or something. I’m not throwing it in the landfill with all the others. I’m thinking this is t a good product, or maybe my jaw became too strong and it is a good product but…. Don’t you think it should have lasted more than a week? I’ll leave it up to you!!

    Was this helpful?
  • RP
    Rob P.
    Verified Buyer
    Reviewing
    Guys Pack
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Great Product!!!

    I’m loving this dark green ball. It fits very well in my teeth feels comfortable and it’s a great resistance. Love the products so far and definitely feel it benefiting my jawline. I play with it? while I’m working at the Computer. Great product.

    Was this helpful?
  • TR
    Toni R.
    Verified Buyer
    Reviewing
    Pop 'N Go - Level 2
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Pop N Go

    It arrived very quickly. I started doing the exercise every other morning for 5 minutes.

    Was this helpful?
  • KT
    Kieran T.
    Verified Buyer
    Reviewing
    Pop 'N Go - Level 2
    I recommend this product
    Rated 4 out of 5 stars
    2 weeks ago
    Decent but got wrong strength

    Completely as advertised. Green, tastes of rubber but will give you lockjaw after a consistent 10-15 mins of chewing. Would say level 2 is a good starting point for someone under 18, adults should be recommended level 3+

    Was this helpful?
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.