The best mastic gum brands, compared (2026)

We weighed, inspected, and chewed the most popular mastic gum products on the market. See how they compare.

If you’re new to mastic gum, you may think any ol’ bag off Amazon or TikTok Shop will do. After all, it’s all the same thing: resin from the mastic tree (Pistacia lentiscus), right?

Yes and no.

The chemistry of the resin is the same, but what arrives at your door can be dramatically different, therefore affecting your results with the gum, the quality of your chew, or even the ability to chew it at all.

To show how different mastic can be from brand to brand, we bought seven popular mastic gum products and inspected each for weight, size, cleanliness, freshness, and packaging.

Three of the seven came in under their labeled weight, most of the plastic-pouched products arrived melted together, and several had visible dirt. In fact, none were clean, correctly weighed, sized, and packaged.

The best mastic gum brand, by our standards, is Greco Gum.

• Best overall: Greco Gum
• Best for jawline training: Greco Gum Droplets
• Best capsule option: See mastic gum vs. mastic powder
• Best budget option: None of the products we tested earned it

*Cost per day assumes one gram of mastic per day, based on the weight we measured. Chios Mastiha Growers’ Association abbreviated “CMGA.”

Which buyer are you?

Before comparing brands, if you’re new to mastic gum, there’s something you should consider.

If you’re chewing for jawline training or oral health, you want whole resin. The best brands give you two choices:

• 1Nuggets: larger and easier on a jaw new to mastic
• 2Droplets: smaller and harder for more resistance, but you need to work your way up

If jawline is your main goal, our guide to the best gum for jawline training covers what to look for beyond brand. For oral health, either type works the same. That said, if you’re after gut health and would rather not chew, capsules may suit you better.

Now, onto the comparisons.

How we compared

We judged each product on the problems that show up most commonly when ordering mastic:

• weight accuracy
• tear size
• cleanliness and freshness
• packaging condition

Our guide on what to look for when buying mastic gum explains why each one matters.

Every claim below comes from our team’s testing, chewing, and experience, or from the brand’s own label, listing, or website. We ordered each product once, so other experiences with the same brands may vary.

Brand-by-brand verdicts

Greco Gum

We source our mastic through the Chios Mastiha Growers’ Association, the cooperative that cleans and grades mastiha before it leaves the island. If a brand is not advertising its association with the CMGA, it is a red flag.

Once our mastic gum arrives in the US, we sort it again by hand, filtering for visual quality markers and stickiness, which is how we can sell two distinct types instead of one mixed tin. Our nuggets vs. droplets guide will help you choose between them.

Our mastic ships refrigerated from Greece, and after we sort it in the US, we pack it in metal tins to reduce melting before it reaches your door. Your gum may still melt in transit, especially if it sits in a hot mailbox in the summer months. If you received a tin of melted Greco Gum, we will replace it for free.

Furthermore, if your first order disappoints you for any reason, you have 30 days from delivery to swap for the other variant or get a full refund, and you keep the product either way.

More than 52,000 people have chewed Greco Gum, and across 1,000+ verified reviews averaging 4.8 stars, our chewers’ most common complaints are stickiness, taste, hardness, and concerns around dental work.

These helped us form the criteria by which we’re judging each mastic gum in this breakdown, and the hardness variable is why we sort our mastic into two types to give you a choice between tough (nuggets) and even tougher (droplets).

Eastanbul (Large)

The weight was accurate, and these were the freshest tears we opened. They had a strong smell, soft pieces, and a color that suggested they were from the most recent harvest in 2025. Unfortunately, after a single day in transit, the tears had melted into big globs that only partly broke apart. When a brand uses plastic packaging, they are gambling with how their product will reach you.

Eastanbul’s site says its gum comes from Chios but doesn’t name the Growers’ Association or claim PDO status.¹ The Amazon listing is non-returnable, but orders on Eastanbul’s own site can be refunded for melted gum if you report it within 5 business days with photos.²

Eastanbul (Medium)

As opposed to Eastanbul’s large tears, these were very hard and dry with a weak smell, and the expiration year on the label appeared to be scratched off. We suspect it was old stock from two harvests back, in 2024. There’s nothing inherently dangerous about chewing older mastic gum, but unlike a fine wine, it doesn’t improve with age, so fresher is always better.

Otherwise, the weight was accurate, and the tears were the medium size the label promised, with some dust and shards but nothing abnormal.

Mediterranean Products

Mediterranean Products’ Amazon listing calls it resin “from Greek Farmers” but doesn’t name the Growers’ Association or claim PDO status.³ If a brand’s product is legit, they tend to let you know.

The label also notes “date of production 2026,” but we ordered in early August, before the 2026 harvest is collected and cleaned, so that date most likely refers to packing, which would make this the 2025 harvest.

The bag came in slightly under its advertised weight, at 19.3g against a 20g label, but the bigger problems were cleanliness and size. There were too many specks of dirt to pass as Grade A, and the “medium” tears were actually small, the smallest size sold.

Terra Greek

Terra Greek’s bag said “date of production 2024,” while the Amazon listing photo shows 2020 with a best-before date of 2024. Oddly, it smelled fresher than either date suggests, so the label may simply be old.

The weight was accurate, but the quality was low. Small, medium, and large tears were mixed, a sign the gum wasn’t sorted, washed, or cleaned properly, and the pieces had visible dirt and had melted together in the pouch. The listing says the gum comes “from Mastic Growers” but doesn’t name the Growers’ Association or claim PDO status.⁴

Chaos Mastiha

Chaos Mastiha’s weight was honest, at 20g both on the label and our scale, but everything else went wrong. It took 12 days to arrive, the longest wait in our batch, and the whole bag had melted into one sticky block with zero individual tears.

We could see dirt specks throughout, and while the resin was fresh, it looked like B-grade mastic to us. Additionally, the listing says the gum is harvested from the mastic trees of Chios but doesn’t name the Growers’ Association or claim PDO status.⁵

Blessed of Greece

The mastic underneath looked clean and properly washed, likely Grade A before it melted, but this bag arrived with the worst melt of the batch in one hard, sticky, fused mass.

Weight-wise, the label says 25g, but we measured 21.8g. That’s 13% short. Additionally, the “medium” tears were on the smaller side, and the listing says it comes “from Mastic Growers” but doesn’t name the Growers’ Association or claim PDO status.⁶

Mystic Gum

Mystic Gum had the best presentation of the group, with a metal tin, habit tracker card, a welcome story, plastic seal, and a paper insert. The gum looked fresh, with larger pieces and a little dirt. They even “source directly from farmers in Chios” and describe how the Growers’ Association cleans and grades the resin.⁷

Everything looked great, until we weighed it.

At 25g on the label, but only 20.4g on the scale (we weighed twice for confirmation), Mystic Gum had the largest shortfall of any brand we measured at an 18% discrepancy. And at $29.99 a tin, that works out to $1.47 a day, the most expensive of anything we tested.

So with Mystic Gum’s refund policy, which promises a full refund within 90 days on first orders, “no questions asked,” you’d probably get a refund if your order came up this short too. That said, other policies on their site explicitly exclude refunds over taste, personal preference, or products “altered due to environmental conditions beyond our control,” which would cover melting in transit.⁸

Gum of Gods

Gum of Gods was out of stock when we ordered, so we couldn’t test it. The brand packs its mastic in metal tins, sources from the Chios Mastic Growers Association, and sells plain mastic alongside versions coated in maple syrup, peppermint with stevia, or pine pollen.⁹

It also sells a Cherry Jawline Gum made from a synthetic gum base with aspartame, sucralose, and BHT, so if you choose this brand, make sure you’re actually buying the mastic.¹⁰

One other peculiarity we noticed: the Gum of Gods site claims an average rating of 4.9 out of 5 stars from over 1,600 reviews,⁹ yet at the time of publishing this article, its Amazon listing averages 3 stars across more than 100 reviews, with 36% being 1 star and 36% being 5 stars.¹¹

Shop the brand that clears every bar.

Where the others win

Greco Gum is the best all-around mastic gum, but here are the highlights of the others we tested.

• On price per day, Blessed of Greece ($0.64), Eastanbul ($0.67), and Terra Greek ($0.68) all cost less than Greco’s best price of $0.70.
• Eastanbul’s large tears were among the freshest mastic we opened.
• Blessed of Greece’s resin looked clean and well washed underneath the melt.
• Mystic Gum has great packaging and gives first-time buyers 90 days to ask for a refund, longer than Greco’s 30, though its exclusions narrow what that covers.

We couldn’t verify legitimate sourcing for any of the brands we tested, and while we suspect black market sourcing for some of them, most of their problems seemed to originate after the gum left Chios.

Sourcing

Real mastic grows only in southern Chios, and the EU has protected Chios mastiha as a PDO product since 1997.¹² The Chios Mastiha Growers’ Association is the cooperative that buys, cleans, grades, and distributes the island’s mastiha, and it recommends buying only sealed packages that carry its trademark.¹³

Check a brand’s listing, box label, and website for the Association’s name or a PDO claim. None of the seven products we tested named the Association as its supplier or claimed PDO status, and the ones with the vaguest sourcing language also had dirt, unsorted sizes, and mislabeled tears.

When a brand won’t say where its mastic comes from, there’s a good chance it came from the black market, where prices are lower and little to no sorting or cleaning happens. Mastic is collected by hand off the ground outdoors, so unprocessed resin can come with stems, seeds, sticks, and even bugs. Unwashed mastic is like unwashed lettuce, and it can make you sick.

Packaging

Some pieces of mastic are softer than others, and heat in transit softens them further. In a metal tin, a soft piece stays on its own, so you can simply pull it out. In a plastic pouch, that one soft piece can fuse the whole bag into a single glob, which is what happened to four of the six pouched products we tested. That makes a metal tin one of the best signals you can look for, since it protects the gum from fusing and keeps it out of contact with plastic.

Track record

When influencers endorse a brand, their reputation becomes tied to it. Greco Gum has sold mastic gum in the US since 2021, partnering with dozens of well-known, trusted health creators.

When you size up any brand, check whether it publishes a return policy with real terms. Every product we bought on Amazon was listed as non-returnable for food safety reasons. Several brands’ own sites offer more, but read the exclusions, since some rule out exactly what went wrong in our orders, like melting.

Our terms are short by comparison. Your first order comes with 30 days from delivery to swap for the other variant (nuggets or droplets) or get a full refund, and you keep the product either way.

Our roots on Chios

Greco’s founders moved the company’s headquarters to Chios to work directly with the families who have harvested mastic gum for generations. Each year follows the same cycle of scoring the trees, collecting the tears, and cleaning them by hand, with tradition and quality ahead of volume.

The relationships we cultivate with the families who cultivate our mastic give us the deepest insight into the growing practices and culture that have kept mastic alive since the time of the Ancient Greeks.

It’s also why black-market mastic bothers us beyond the quality problems. When brands buy uncertified resin in bulk, they undercut the farmers who follow the Association’s standards, and over time, that leaves less incentive to do the work properly.

In other words, the mastic gets worse for everyone.

When you choose to chew Greco Gum, you’re not only getting the highest-quality mastic gum on the market, but you’re helping ensure the mastic tradition is maintained and respected. As you can see from the widespread lack of sourcing credentials from the brands we highlighted above, and the subpar products that follow, going through the proper channels matters.

Are all mastic gum brands the same?

No. The resin comes from the same tree on the same island, but sorting, washing, packaging, and shipping happen after harvest, and that’s where brands diverge. In our testing, every product fell short in at least one of those steps, leading to a subpar chew or buyer experience.

Does mastic gum work for H. pylori?

Early clinical evidence suggests mastic gum can help with H. pylori. Roughly one in three people clear the infection with mastic alone,¹⁴ and combining mastic with antibiotics boosts that to over 90%.¹⁵ Review the evidence and what to expect in our mastic gum for H. pylori guide.

How do I spot fake or black-market Chios mastic?

Look for the Chios Mastiha Growers’ Association by name or a PDO claim on the listing or label. Be wary of vague phrases like “from Mastic Growers,” dirt on the pieces, mixed tear sizes, and plastic packaging. Our guide on whether mastic gum is legit or a scam covers the other tactics brands use.

Should I chew mastic gum or take capsules?

Chew the resin if you want jaw training or daily oral care. Capsules suit people focused on gut health who don’t want to chew, but gut benefits are still available when chewing the resin. See mastic gum vs. mastic powder for the full comparison.

Why do prices vary so much between mastic gum brands?

Mastic gum is an exclusive product with a limited growing area and serious environmental threats, like wildfires on Chios. Certified sourcing, a second sorting pass, metal tins, and refrigerated shipping all cost money. As you can tell from our testing, cheap mastic comes with many problems, from melted bags to old stock. See more on why mastic gum is so expensive.

Which mastic gum brand is best for jawline training?

For jaw training, you want consistently hard pieces, and you only get that from a brand that sorts its mastic after import instead of mixing every size in one tin. That’s why we recommend Greco Gum Droplets, our smaller, harder pieces that offer high resistance. If you’re new to mastic, start with the larger, softer Nuggets and work your way up.

Our guide to the best gum for jawline training covers other chewing options beyond mastic.

What should I do if my mastic gum arrives melted?

Photograph it before you do anything else. If you bought it on Amazon, request a refund or replacement through Your Orders and include the photo. If you bought it from a brand’s site, check whether its refund policy excludes melting before you file.

This article originally appeared online in 2025; it was most recently updated on November 2, 2026, to include current information.

Christian Arnold

Christian writes about technology’s impact on health and medicine 3.0. Among other things he’s a contributor to The Solarium.