What Is Stackables?

The ULTIMATE, Customisable Chewing Experience

Stack as many as you need. Get a personalised chewing experience with Stackables - giving you more control over your chewing experience. Each pack contains 20 grams of medium to very tough mastic gum crystals for a customised chewing experience.

Our Story: How We Ended Up Selling Tough Mastic Gum...

Mastic was chewed by cavemen back in the day - picture a caveman...did you visualise a man with a sharp, sword-like jawline? I did too.

So what happened between then, and the present day?

That question bugged me until I learned that so much had changed....

The Food Dilemma 

Food has gotten softer over the years as it has become more desirable, which has caused atrophy of our facial structures.

This has caused our jaws to adapt to softer foods, meaning our jaws are no longer required to be big and strong - therefore, our jaws have become smaller and our bite force weaker over time.

What do liquid diets, meal replacements, and smoothies have in common? 

Let's not lie - all three taste great, but they fail to activate the masseter muscles located in your jawline....

When our facial muscles are not used enough, just like when you stop going to the gym, our muscles begin to shrink - and our jaw muscles are not exempt from this rule...

This is why it is important to apply resistance to our jaw muscles - to prevent atrophy of our masseter muscles...and that is where mastic gum steps in.

Stackables contain medium to tough crystals, ensuring that you get the perfect chew each time. It is reusable, never dissolves like regular chewing gum, and is naturally sugar-free!

And That's Not All....

Mastic gum is 100% natural, great for your gut & digestive health, prevents tooth decay with it's anti-microbial properties, and even eliminates onion and cigarette breath.

The Fix? Let's Travel Back In Time...

We must re-activate our masseter muscles - that's where mastic gum steps in. To restore jaw strength and structure, Stackables is ideal for masseter muscle (jaw muscles) resistance training, since it is 8-10x tougher than regular chewing gum.

This is ample force for jawline development, improving bite force, and maintaining good tongue posture.

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

The Difference: ROCKJAW vs Other Brands

We spend hours hand-picking and hand-packing EACH & EVERY individual mastic gum crystal selecting tough crystals for your jawline - these are the ones that end up in your pack of Stackables to ensure you get the highest quality product.

There's a LIMITED SUPPLY DROP, every month.

We're the ONLY BRAND that handpicks each & every crystal, and this effort is reflected in our prices, including the high price of sourcing mastic gum. Due to the rarity of hard mastic gum, we produce a very limited number of units per month.

We also donate a portion of our sales monthly to help support global disasters.