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Giga Chew Review 2026: Is Giga Chew Worth It? We Break Down 7 Best-Sellers
Last updated October 2026 · Researched from gigachew.com.au, the brand's own policies, and independent coverage of mastic gum
Giga Chew mastic gum and jawline accessories
If you have spent any time on fitness or "looksmaxxing" corners of the internet, you have probably seen someone chewing a rock-hard piece of gum and promising a sharper jawline. Giga Chew is one of the brands riding that trend. It sells mastic gum sourced from Chios, Greece, plus a small ecosystem of add-ons: a pocket tin, mouth tape, a herbal tea and a digital guide. The obvious question is whether any of it is worth your money, or whether it is a pricey fad.
This review is a researched look, not a hands-on test. We went through the brand's own product pages, its shipping and returns policies, and what independent sources say about mastic gum in general. Bottom line: the products are inexpensive and clearly described, but the store's no-returns policy and the weak science behind the big jawline promises mean you should buy with realistic expectations.
Quick Verdict
Best for: curious buyers who enjoy chewing gum and want a low-cost, low-risk way to try a mastic gum jaw routine
Skip if: you expect guaranteed jaw reshaping, or you want a store with a returns window for change-of-mind purchases
Price range: about $4 for accessories up to $54 for the bundle, at time of writing (October 2026)
Our rating: 3.3 out of 5, based on fair pricing and clear product descriptions, balanced against final-sale terms, bold marketing claims and very little independent customer feedback we could find
What Is Giga Chew?
Giga Chew is an online store, operating at gigachew.com.au, built around a single hero product: hard mastic chewing gum made from Chios mastic resin. The brand describes itself as helping you define your jawline and strengthen facial muscles, and its homepage banner claims to be the number one mastic gum with over 36,000 chewers worldwide. That figure is the brand's own claim and we could not verify it independently.
Around the gum, the store sells a portable tin, mouth tape, a habit tracker, a blue herbal tea and a 50-plus page digital guide. A press release distributed in late 2024 announced that the company ships worldwide. It is a focused direct-to-consumer shop rather than a broad retailer, which keeps the catalogue easy to browse.
Is Giga Chew Legit?
Based on what we found, Giga Chew looks like a real operating store with an actual product, published shipping and returns policies, and a support email address. A distributed press release from October 2024 shows it has been marketing itself for at least two years. That said, our searches did not turn up Trustpilot pages or Reddit threads about the brand, so there is little independent customer feedback to lean on. Treat the brand's own review counts and "36,000 chewers" line as marketing until you see more evidence.
The larger caution is about claims, not legitimacy. Independent science coverage has argued that mastic gum may help with breath and gut health, but that it will not reshape your jaw. Giga Chew's product copy leans heavily on jawline and facial symmetry language. Everything below attributes those statements to the brand, and none of it is medical advice.
The Best Giga Chew Products, Reviewed
1. Giga-Chew Mastic Gum — Best for Starting Your Routine
Giga-Chew Mastic Gum, the brand's core product
Price: $28 · Material: pure Chios mastic resin · Type: hard natural chewing gum
This is the product everything else is built around. The brand calls the Giga-Chew Mastic Gum the hardest chewing gum in the world and says it is sourced directly from Chios, Greece. According to the brand, the gum exercises the jaw muscles and also supports digestive health. Those are the brand's claims, and the jawline effect in particular is not backed by independent evidence we could find. What you can count on is a natural resin gum with no sugar-coated filler, which is a genuine draw if you dislike conventional gum.
Mastic is also famously tough in the first minutes, so expect sore jaw muscles at first and start slowly.
Pros
Single-ingredient natural resin according to the brand
Sourced from Chios, Greece, the traditional mastic region
Reasonable entry price
Cons
Very hard texture can tire or strain the jaw
Jawline results are not independently supported
Final sale, so no returns if you dislike the taste or texture
2. The Giga Crew — Best for Trying Everything at Once
The Giga Crew bundle from Giga Chew
Price: $54 · Type: bundle
The Giga Crew is the store's higher-ticket option at $54. The product page we reviewed did not give a full item-by-item description, so we cannot tell you exactly what is inside beyond what the store lists on the page. If you are considering it, check the contents carefully against the individual prices of the gum, tin and accessories before paying, so you know whether the bundle actually saves money.
Pros
One purchase instead of several separate orders
Likely the most complete way to try the brand's range
Cons
Limited published detail on what it contains
Highest price in the catalogue, and sales are final
3. Giga-Chew Portable Tin — Best for Carrying Gum Around
Giga-Chew Portable Tin for mastic gum on the go
Price: $4 · Type: clasp storage tin · Capacity: 15-20g of mastic gum
The Giga-Chew Portable Tin is a small clasp tin that holds roughly 15 to 20 grams of Giga Chew sized gum and fits in a pocket or bag. The listing notes the gum is sold separately, and the description is written in a personal voice, saying the person keeps one in their car. At $4 it is a tidy, cheap convenience rather than a must-have.
Pros
Very cheap
Pocket-sized and easy to throw in a bag
Cons
Gum is not included
A basic accessory you could replace with any small tin
4. Giga Chew Mouth Tape — Best for Nose-Breathing Curious Sleepers
Giga Chew Mouth Tape for sleeping
Price: $13 · Type: mouth tape · Fit: one size
The Giga Chew Mouth Tape is described by the brand as a soft, skin-safe tape that keeps your lips gently sealed during sleep to encourage nose breathing. The brand claims it can reduce snoring and dry mouth, boost oxygen and support jawline and facial symmetry. These are brand claims and should not be taken as medical advice. Mouth taping is a contested practice, and anyone with a blocked nose, sleep apnea or breathing problems should speak to a doctor before trying it.
Pros
Inexpensive
One-size design marketed for men and women
Cons
Health benefits are the brand's claims, not verified
Not suitable for everyone, especially with breathing issues
5. Face Drain Herbal Tea — Best for a Puffiness-Focused Ritual
Face Drain Herbal Tea, a blue butterfly pea blend
Price: $18 · Type: herbal tea · Flavour: peppermint and ginger with butterfly pea flower
The Face Drain Herbal Tea is a blue blend that the brand says decreases bloating, puffiness and water retention for a slimmer-looking face. The flavour is described as peppermint and ginger, with the blue colour coming from butterfly pea flower. Treat the de-puffing promise as marketing. The tea may simply be a pleasant, caffeine-free drink, and any visible change should not be expected on the basis of the brand's description alone.
Pros
Appealing flavour profile of peppermint and ginger
Striking blue colour
Cons
Face-slimming claims are unproven
$18 is a premium for a herbal tea
6. The Face Gains Blueprint — Best for Guidance and Structure
The Face Gains Blueprint digital guide
Price: $18 · Type: digital product · Length: 50-plus pages, six parts
The Face Gains Blueprint is a digital guide. According to the store, it runs 50-plus pages and covers attractiveness, body alignment, the best way to chew, how to get a lean face, diet, and what it calls extra esoteric secrets. Buyers get unlimited access, including future updates. Because it is a digital download, it is hard to judge quality without seeing it, and as with all sales here, the policy says no returns.
Pros
Includes future updates according to the listing
Gives structure on how to use the gum
Cons
Cannot preview the content before buying
Advice quality is unverified, and the diet advice is not medical guidance
7. Habit Tracker — Best for Staying Consistent
Giga Chew Habit Tracker
Price: $4 · Type: gift item
The Habit Tracker is the cheapest item in the shop at $4. The listing offers very little description, so treat it as a small add-on to help you keep a daily routine. If you already use a notes app or planner, you probably do not need it.
Pros
Very low price
Pairs naturally with a daily chewing routine
Cons
Almost no product detail
Easily replaced by free tools
Quality & Durability
Because mastic gum is a consumable, durability mostly comes down to freshness and texture. The brand says its gum is pure Chios mastic resin. We could not find independent lab results or third-party testing for Giga Chew, so we cannot confirm purity. Its returns policy states that sales are final because of the natural and consumable nature of the product, which is something to keep in mind if you are fussy about taste.
Mastic chewing is hard work. Many people find the first minutes difficult, and independent science coverage warns that heavy chewing can carry risks such as jaw soreness. If you have jaw pain, dental work or a jaw joint condition, speak to a dentist or doctor first. This article is not medical advice.
Shipping, Returns & Warranty
Fulfilment: 1-2 business days before shipping, per the store policy
Shipping time: estimates start after fulfilment, and the store says delivery times are out of its control once shipped
Delays: contact sales@gigachew.com.au if a parcel is severely delayed
Returns: all sales are final, with no returns, exchanges or cancellations once an order is placed
Exceptions: damaged, defective or incorrect orders should be reported within 48 hours of delivery per one part of the policy, while another part mentions 7 days, so report problems as early as possible
Return condition: accepted returns must be unused and in original packaging
Giga Chew vs. Competitors
Other mastic gum brands: several brands sell Chios mastic gum, often in softer or flavoured forms. Giga Chew focuses on the hardest texture and a jawline angle, while others lean on digestive or oral-health positioning.
Standard chewing gum: far cheaper and easy to find, but much softer and not marketed for jaw exercise.
Dedicated jaw trainers: silicone jaw exercisers offer resistance without gum and last longer, but lack the natural resin angle.
How to Save at Giga Chew
The sheet offer for this brand lists the code JAYSONREVIEW as AUD 5 off the entire order. We tested the store through our link and the cart test did not show a discount, so we could not verify that offer and cannot promise it will apply at checkout. It is worth entering the code at checkout and checking the total before you pay. You can also browse the latest offers on the Giga Chew coupon codes and deals page, and check the Giga Chew promo code offer on the store. Because sales are final, using a bundle or a code is the main way to lower the cost.
What Real Customers Say
We could not find independent Trustpilot or Reddit discussions about Giga Chew in our searches, so we cannot responsibly summarise customer sentiment. That absence is itself worth noting. What we can say is based on the brand's own pages and general feedback about mastic gum.
Common praise for mastic gum in general: natural ingredient, no added sugar, and a distinctive piney flavour that many people enjoy.
Common praise for this kind of routine: it is cheap and simple to try.
Common complaint about mastic gum: the texture is very hard and can tire the jaw.
Common complaint about the category: jawline results are often described as disappointing compared with social media claims.
FAQ
Does mastic gum really give you a sharper jawline?
Independent science coverage says it will not reshape your jaw. Giga Chew markets the gum for jawline definition, but treat that as a brand claim.
Can I return Giga Chew products?
Not for a change of mind. The policy says all sales are final, apart from damaged, defective or incorrect orders.
How long does shipping take?
Orders are fulfilled in 1-2 business days, then shipping times depend on the carrier and destination.
Is the Giga Chew discount code real?
The sheet lists JAYSONREVIEW as AUD 5 off the entire order, but our cart test did not confirm any discount, so check your total at checkout.
Is mouth tape safe?
It is not right for everyone. Speak to a doctor first if you have breathing problems or sleep apnea. This is not medical advice.
Final Verdict
Giga Chew is a small, focused store with inexpensive products and clear descriptions. The gum is the sensible place to start, and the tin and tracker are cheap extras. The concerns are practical: sales are final, we found almost no independent customer reviews, and the jawline, de-puffing and sleep claims come from the brand rather than from proof. If you are curious and comfortable with that, the Giga Chew starter gum is a low-risk experiment. If you want guaranteed results or easy returns, look elsewhere.
How We Researched This Review
We reviewed the brand's product pages, shipping and returns policies, and ran a search for independent customer feedback and science coverage of mastic gum. We did not purchase or test the products ourselves. Prices are listed as shown on the store at time of writing (October 2026) and may change.
