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๐ฟ Chew Clean, Live Fresh โ The Gum Your Teeth Deserve
Underbrush Mastic Mint Remineralizing Gum is a premium, sugar-free chewing gum crafted with nano-hydroxyapatite to support enamel health, natural mint and resin flavors for fresh breath, and a unique tree sap base for an authentic chew. Free from gluten, artificial sweeteners, and synthetic additives, this eco-conscious gum is made in small batches in California using globally sourced botanicals, delivering a clean, mineral-rich oral care experience that fits a mindful, health-forward lifestyle.











| ASIN | B0CTNK1ZQC |
| Age Range Description | Adults |
| Allergen Information | Dairy Free, Gluten Free, Nut Free, Soy Free |
| Best Sellers Rank | #3,128 in Grocery & Gourmet Food ( See Top 100 in Grocery & Gourmet Food ) #56 in Chewing Gum |
| Brand | Nathan & Sons |
| Brand Name | Nathan & Sons |
| Color | Teal |
| Container Type | Packet |
| Customer Reviews | 3.7 out of 5 stars 1,514 Reviews |
| Diet Type | Gluten Free, Keto, Paleo, Vegan, Vegetarian |
| Flavor | Mint |
| Item Form | Tablet |
| Item Package Quantity | 1 |
| Item Package Weight | 0.19 Kilograms |
| Manufacturer | Nathan & Sons |
| Number of Items | 4 |
| Number of Pieces | 18 |
| Package Information | Packet |
| Region of Origin | United States (Handcrafted) |
| Size | 18 Count (Pack of 4) |
| Specialty | GMO Free, No Artificial Flavors, No Artificial Preservatives, No Synthetic Rubbers, Plastic Free |
| UPC | 860010482513 |
| Unit Count | 72 Count |
C**M
I could actually feel the difference after teeth cleanings
$30 for gum is expensive, no lie. But you need to remember what we are comparing this gum to - the cheap stuff is cheap for a reason, mass produced, chemicals, singularly designed for a pleasant chewing experience. I have Invisalign and maintaining the cleanliness of my teeth is very important since they are effectively sealed most of the time. I bought my first ever pack of Underbrush in early February right after a Gingevectomy and several prior cleanings to prepare for Invisalign. I would chew two pieces at a time then blob them together and keep it in a container. Yes the blob was tasteless but it was SHOCKINGLY chewable up until just yesterday when the blob finally felt like it was disintegrating. So from February to April I was able to chew this gum almost daily. I went in for an annual cleaning in March and it was a night and day difference. My tooth sensitivity was significantly decreased. My dental hygiene had improved yes, but not enough in my opinion to create such a noticeable difference. I was absolutely wincing when my teeth were getting polished or picked and after this gum it was more than tolerable. I believe this gum did help remineralize my teeth and I'm going to keep on chewing it. My recommendation is to not throw it away after each chew but basically keep it until its unchewable. This is not delicious gum, this is natural, teeth strengthening gum. It is temperature activated so a hot environment will melt it - don't keep in the car.
C**Y
Still good
I honestly believe this gum just is a trade off. Overall good, but expensive. Pros: Healthy , Organic, Tastes good (I got mint), Good chew (more stiff), Last long (integrity, not flavour), Biggest surprise was I can eat or drink anything directly afterwards without that classic taste/cold sensation off mint, Packaging (perhaps a bit simple and overkill at the same time) Cons: Small size (chew 2 at a time), flavour falls off within minutes (stays almost subtle, keeps breathe relatively neutral), Price
A**N
Good quality gum, no nasty chemical taste after hours of chewing.
Product is as advertised, I chewed a couple peices for like 6 hours, ofc it loses its flavor fast but what gum doesnโt, however, I donโt get a weird toxic taste in my mouth after only 30 minutes of chewing like most other gums, as well as my teeth feeling really smooth in the parts I chewed with. It wonโt reach the outside of your teeth too well but thatโs the nature of chewing gum, I still think this helps your teeth remineralize it just really helps the inner parts of your teeth where all the crushing goes.
J**.
Eh... 2ยฝ stars isn't an option.
Time for my honest review. On three separate occasions I have ordered four packs of this gum. I only order it when it's on sale because frankly $44 for four packs of gum is ridiculous. First the good... My gums and teeth honestly feel better. Sensitivity has waned, and I do believe that my mouth is healthier for it. Now on to everything else. As I mentioned before I've ordered this three times and have received three different quality products. The first four pack was very heavily dusted in a powder which I assumed to be that nanohydroxyapatite. The second time I ordered it it had almost none of this and almost a completely different consistency it was crumbly and it stuck to my teeth something fierce. The last time I got it it didn't stick to my teeth but there was hardly any "dust" on the pieces. I realize that this is supposedly a handmade product however for them to vary that drastically across three different orders leaves a lot to be desired. Also worthy of noting is the gum flavor lasts about 42 seconds. I have begun looking elsewhere for my nanohydroxy appetite gum.
M**T
Not Your Average Gum
Absolutely love this gum. For those who complain the flavor doesnโt last long enough, this is due to the all natural ingredients. This gum is meant to be chewed for long periods of time. The longer you chew, the softer it gets and I love the earthy flavor that lasts once the initial flavor is gone. I have noticed such an improvement throughout the day as my breath stays fresh and teeth look cleaner. Itโs not the gum you are used to, but it is the gum your teeth need. Very excited to try the variety pack next.
S**Y
Wonderful texture to keep the mouth busy for hours!!
I have ADHD and this gum lasts me the whole day as a chew toy. Its the perfect texture for this purpose. Its essentially a good flavorless mastic gum texture that you forget is there while you work. It's really good at keeping my mouth busy, I didnt intend it this way, but as a side benefit my jaw seems to look a little broader and stronger because I chew this stuff constantly. All this with the peace of mind knowing im not ingesting anything nasty. Side benefit: When I have this after meals, I make sure to move it around to all the areas where crumbs might be to keep them from just sitting there and causing damage. Like a toothpick but way more effective. The food bits will then flavor the gum as what you last ate for a minute, but dont worry it then it goes back to flavorless just by chewing. To all the people 1-star reviewing this gum for being hard to chew and fragmenting... did you READ the pamphlet? It literally says to let the gum warm in your mouth a little before biting into it. To all the people 1-star reviewing this gum for short-lasting flavor... could you THINK for a moment? You need chemicals (microscopic plastic sacs) to make flavor last unnaturally long by releasing flavor slowly overtime. This is a NATURAL gum and dosent have those. You cant have your cake and eat it too, so stop disparaging this honest company because you failed to understand what you were buying to begin with... You want a genuine natural gum, this is it.
A**R
Flavor disappears quickly then tastes bad
I liked the premise of the gum, all natural, made in the USA, small buisness, the whole thing. I was hesitant to begin with because of the high price. $10 per pack and $40 per box is quite expensive for chewing gum, but i thought that with the high price tag the flavor and quality would match, boy was i sorely mistaken. The biggest problem that I have is the fact that the flavor, the good flavor disappears almost immediately. Both my wife and I noticed this pretty prominently. The flavor didn't even last 5 minutes. It was literally gone in a minute or two, then the taste that remains is not good in my opinion. The website says to chewing 1 to 2 pieces at a time and that you need to chew for at least an hour to get the oral health benefits of it. I dont know how anyone could stand it for that long, I spit it out in less than 10 minutes. Then there's the fact that its hard to begin with and as you chew it, it loosens up some but is still pretty tough. My wife compared it to chewing straight bees wax. I understand that natural materials in the gum do not react the same as the conventional chewing gum that we have become accustomed too so I could overlook this texture thing but it is still worth mentioning. I still love all the premises that led me to buying the gum, and eventhough I will not be chewing anymore and it will go to waste I'm not going to ask for a refund because I want to support the small American company, however I cannot in good conscious leave a positive review due to my experience. If they could find a way to get the flavor to permeate the gum and last the recommended hour it'd be worth a more positive review. But as is, it doesn't warrant or deserve a better one.
K**E
Sad panda
3 stars for superior ingredients, however it doesn't satisfy my "gum" craving at all. You can't even blow a tiny bubble, that's what I look for in my gum lol. But in all seriousness, the flavor is essentially pointless as it only last 30 seconds at most, and it is very hard to chew for even 30 min. It feels like a task, like, "i HAVE to chew this for this amount of time, come on you got this, 5 more minutes!". After 5 minutes im ready to spit it out. The ingredients are WONDERFUL I love everything about it... on paper. However I am not a fan, and will not purchase again, and I even feel bad about that lol, because I wanted to love it.
J**K
Long lasting and pleasant!
This is the real deal. Expensive, but probably worth it. As others note, the initial flavour disappears quickly, but you can chew for hours which is great for mewing and dental health in general. If I take the gum out to eat or drink something, when I pop it back in, there is a pleasant but subtle flavor. I've only chewed two or three pieces, but my teeth feel better already! Thank you Nathan & Sons!
L**E
Refreshing
Refreshing
K**S
STALE HARD GUM!
Gum came stale and hard - Never order from this seller - flavour only lasts a minute. I have had this gum in the past and really enjoyed but this time it was terrible and I can't even return it!! Beware
U**I
Not worth it
Started out ok, but really is just too expensive for what it isโฆ wont be buying again, maybe if at 60%+ off
C**N
Not worth it
Tastes 10s then is horrible
Trustpilot
2 weeks ago
2 weeks ago