








Greco Gum Starter Pack
Try both varieties of premium mastic gum in one convenient bundle. Perfect for first-time buyers to discover which type suits you best.
- Strengthens facial muscles and sculpts your jawline
- Kills bad breath and harmful oral bacteria
- Calms your digestive system and reduces bloating
- Healthy alternative to plastic-based chewing gums
What you get


Our mastic gum is harvested, cleaned, and sorted by hand. A natural, good-for-you alternative to plastic-filled chewing gums.
Why Greco Gum?
Jaw workout
Avoid plastic
Gut check
Refined taste
Rare & beautiful
What nature wants
Good for your mouth, gut, jaw, and more.
Mastic gum has been treasured for millennia. Its beneficial properties were known to Hippocrates in 400 BC, who recommended it for the prevention of digestive problems, colds, and bad breath.
Hundreds of verified customer reviews.
Frequently Asked Questions
What does Greco Gum actually do?
Greco Gum is a hard, natural gum that gives your jaw a serious workout while you chew. Many customers use it to build a stronger-feeling jaw, keep their teeth and gums cleaner between brushes, and as a post-meal ritual that helps them feel “finished” without dessert or extra snacking.
It’s closer to a daily training tool and mouth-care habit than a piece of candy.
How do I use it and how much should I chew?
Pinch out a small amount to start:
- Droplets: begin with 5–8 pieces
- Nuggets: begin with 1–2 nuggets
Chew gently until the pieces soften and merge. Once it’s formed a single piece, you can add more if you want a bigger chew.
Because it’s a natural resin, some pieces will be softer or harder. If a piece feels too soft or sticky, let it cool for a moment and combine it with a firmer piece to reach the right consistency.
Most people chew for 30–90 minutes per session.
Why is it more expensive than regular gum?
Most gum is made from cheap gum base, sweeteners, and flavorings. Greco Gum has one ingredient: pure mastic resin from the island of Chios in Greece.
Mastic is a niche crop with limited supply, and the resin has to be harvested, cleaned, and sorted by hand. You’re paying for:
- A single-origin, plastic-free gum base
- Careful grading for chew quality
- A product that lasts far longer per piece than normal gum
When you look at cost per day rather than cost per tin, it sits closer to a daily supplement or training tool than a disposable snack.
Did we miss anything?
What should I expect the first time I chew?
It will feel very different from supermarket gum.
The first 1–2 minutes can be strange: the resin breaks into little pieces, there may be a light dusty coating, and the flavor is strong. As it warms up, the pieces bind together into a smooth, rubbery chew that you can work on for a long time.
Start small, chew slowly, and give it a few minutes to come together. Most people say it’s “weird at first, then addictive” once they’ve tried it a few times.
What does it taste like?
Greco Gum is not sweet. The taste is piney and resinous, with a slight bitterness at first and a fresh pine/cedar note as you keep chewing.
If you’re expecting sugary mint gum, this will be a shock at the beginning. If you enjoy strong, natural flavors (black coffee, dark chocolate, herbal spirits), you’re more likely to love it once you’ve given it a few tries.
What is it made of?
Just one ingredient: crystallized resin from the mastic tree (Pistacia lentiscus var. Chia), grown and harvested on the island of Chios in Greece.
There are no sweeteners, plastics, flavorings, or fillers.
Is it safe for my teeth, fillings, or TMJ?
Greco Gum is much tougher than ordinary gum, so it’s not for everyone.
If you’ve had recent dental work, very fragile teeth, dental crowns, or serious TMJ problems, talk to your dentist before using any hard chewing gum. For most people, the key is to:
- Start with a smaller amount
- Warm it up gently instead of biting down as hard as possible
- Give your jaw rest days if it feels overly fatigued
Treat it like you would a new exercise. Build up gradually, not all at once.
Can I chew it every day?
Most customers chew Greco Gum daily, often after meals or during work, study, driving, or training sessions.
A good rule of thumb:
- Start with shorter sessions (15–30 minutes)
- Increase the time as your jaw gets used to it
- If your jaw feels sore or overworked, take a break and treat it like you would any other muscle
As with any food product, listen to your body and adjust your routine if something feels off.
Where do you ship to?
We ship worldwide from our warehouse in the central United States.
Shipping options and prices are shown at checkout. Outside the US, your order may be subject to local VAT or customs charges, which are set by your country. For more detail, see our Shipping & Returns page.