Magical mastic
Here’s why we love this ingredient.
Nathan & Sons <[email protected]>
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Nathan & Sons promotes Underbrush gum, highlighting the benefits of its natural tree resin base, mastic. Mastic gives Underbrush its long-lasting chew and firm texture without relying on synthetic ingredients. The brand also notes that mastic may help support oral health by promoting a healthier balance of bacteria in the mouth.
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The copy
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Nathan & Sons. Hey friend, Ever wonder why Underbrush lasts so much longer than regular gum? Meet mastic. It's a natural tree resin that's been chewed for thousands of years.
Most conventional gum gets its chew from synthetic rubber.
We use a tree resin gum base.
Mastic gives Underbrush its firm texture, long-lasting chew, and natural gum base without relying on plastic or petroleum-derived ingredients.
It's one of the biggest reasons Underbrush feels...well... different.
The first 5-10 minutes are where you receive the full benefits of our nano-hydroxyapatite formula.
But the chew doesn't stop there.
Mastic stays pleasantly firm for hours, making it perfect for long drives, flights, hikes, workdays, or whenever you simply enjoy having something to chew.
And there's another reason we love it.
Research suggests mastic may help support oral health by promoting a healthier balance of bacteria in the mouth.
People have been chewing tree sap for thousands of years for a reason.
We just gave it a modern upgrade.
Button TRY UNDERBRUSH
Chew with purpose.
No Synthetic Rubbers
SHOP ORAL CARE
SUBSCRIBE AND SAVE 20%
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Nathan & Sons
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Message
- Content-Type
- multipart/alternative; boundary=0f9156e3f614a28caa8c0f75cfcef7a8f58a29b164858ca7477e7e100686
- Date
- Fri, 28 Aug 2026 21:14:04 +0000 (UTC)
- From
- Nathan & Sons <[email protected]>
- Mime-Version
- 1.0
- Message-ID
- <fSqJePFdSTKaWf0d_hGAbQ@geopod-ismtpd-80>
- Subject
- Magical mastic
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