NEW BIGGER, STRONGER CRYSTALS & LOWER PRICE.

BACK IN STOCK! VERY LIMITED QUANTITY.

Our Prices:

We spend countless hours hand-picking and hand-packing EACH & EVERY individual mastic gum crystal selecting only the toughest crystals for your jawline - these are the ones that end up in your pack of Stackables to ensure the highest quality product. This effort & labour is reflected in our prices, including the high prices of mastic gum itself.

Despite our vigorous quality check, we still aim to price our products fairly! We also donate a portion of our monthly sales to charity to help support global disasters.

Top Competitor: £41.99

ROCKJAW: WAS £̶36.98 NOW £24.98

Due to the rarity of mastic gum, we only produce a certain number of units per month, meaning supply is always limited.

What Is Stackables?

A REFINED Chewing Experience

Unlock your true potential with ROCKJAW® Stackables Mastic Gum – your sharpest jawline awaits!

Get a more refined chewing experience with stackable solid crystals, giving you more control over your chewing experience. Each pack contains 20 grams of fresh mastic for refined chewing.

⭐️ Increase your bite force

⭐️ Enhance your facial aesthetics

⭐️ Reap the rewards of the numerous health benefits of nature's gift to us, mastic gum, which can also be re-used!

Our flavoured range is designed to give a short, refreshing burst of flavour to make the experience more enjoyable.

Best paired with our ROCKJAW Premium Mastic Gum or Tuff Gum.

WHAT YOU GET

💪 10-14X HARDER GUM (Than Regular Gum)

♾️  Re-Chewable TWICE!

✅ FREE Pro Training Program - Get Faster and Better Results!

✅ The FRESHEST, HAND-SELECTED Mastic Drops

✅ FREE 1-1 Support Via Instagram (@rockjawuk)

✅ Enables Progressive Overloading

✅ Enhanced Chewing Control

+ Additional Benefits:

✅ 5 Star Customer Support

👄  Improves Breathing

🌱 100% Natural

🦷 Improves Dental Hygiene

✅ Sugar-Free

✅ Aspartame-Free

✅ Soy-Free

✅ Antimicrobial properties

✅ Bulk Purchase Discounts

GET RESULTS:

Time waits for no one.

Mastic was chewed by cavemen back in the day - now picture a caveman...did you visualise a person with a razor-sharp jawline? 

Mastic gum was their secret, and now it is yours too!

Mastic is also recommended by Dr. Mike Mew (a British orthodontist who incorporated mewing into the world of dentistry) as one of the best ways to exercise the jawline.

For optimal results, try ROCKJAW with mewing exercises.

How To Use:

Stack as many crystals of ROCKJAW as you suit and chew for 30 mins - 2 hours a day. 

Be sure to chew evenly on both sides, taking breaks.

Stack as many ROCKJAW crystals as you desire and chew for 30 mins to 2 hours daily. Ensure even chewing on both sides, taking short breaks.

Just like any muscle, consistency is key to maintaining and developing your masseter muscles for that striking jawline. It is important to continue working your jawline muscles for long-term results.

🌡️ FOR BEST RESULTS, KEEP REFRIGERATED OR STORE IN A COOL, DRY PLACE.

Choking hazard, keep away from children under the age of 10.

As much as we try to ensure each crystal is tough, sometimes, even we make mistakes & some softer crystals may slip through our hands - we're not robots! Mastic gum is also softer during the summer months and may impact the hardness of crystals.