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Quick question. Do you know what your chewing gum is made of? Because I didn’t. And once I found out, I couldn’t unknow it.

Many conventional chewing gum brands use synthetic rubber polymers in their gum base. In plain terms, that falls under the plastic family. It’s typically listed as “gum base,” which doesn’t require brands to disclose what’s actually inside it.

We’ve audited our skincare and swapped deodorants, but chewing gum? It’s been skating by untouched.

Until now. Underbrush, from Nathan & Sons, just launched a plastic-free chewing gum alongside a full bundle called the Smile Reset System. It’s positioned as an oral care upgrade, not just a breath mint replacement.

Is Most Chewing Gum Made With Plastic?

Short answer, often yes. Traditional chewing gum gets its chew from synthetic elastomers and resins. That formula works, but it’s rarely transparent. “Gum base” can cover a wide range of materials.

Searches for: Is chewing gum made of plastic? Plastic free chewing gum? And clean chewing gum? have steadily increased as consumers start asking better ingredient questions.

Underbrush formulates its chewing gum without synthetic rubber or conventional plastic gum base. It’s also sugar-free and made with remineralizing ingredients designed to support enamel strength and oral balance. It still freshens breath but also does more.

Why Remineralizing Chewing Gum Is Trending

Your enamel constantly cycles between demineralization and remineralization. Coffee, wine, and acidic foods tip that balance. Minerals like calcium and phosphate support enamel maintenance.

That’s why remineralizing chewing gum is gaining attention. Instead of just masking odor, it supports a healthier oral environment. Search interest in phrases like “how to strengthen enamel naturally” and “remineralizing gum” continues to rise.

Underbrush fits directly into that shift: Chewing gum you already use but with ingredients that actually serve a purpose.

The Smile Reset System: A Full Oral Care Upgrade

Instead of selling one product, Nathan & Sons bundled an entire routine. The Smile Reset System includes:

• Underbrush Chewing Gum 4 Pack: Plastic-free, sugar-free chewing gum formulated with remineralizing ingredients. Choose your flavor.
• Pearl Powder Tooth Scrub: A mineral-rich powder that gently polishes while supporting enamel balance.
• Castor Oil Bristle Toothbrush Kit: An alternative to conventional plastic bristles.
• Pearl Serum: Designed to support gum health and oral balance.
• Multi Tool Keychain: For easy access on the go.
• Pearl Powder Spoon: Precise, hygienic application.
• Rinse Cup: A minimal, aesthetic upgrade to your sink routine.
• Bonus Sampler Packs: Extra flavors and products to personalize your system.

It feels less like a random assortment and more like a coordinated oral care reset.

Why Sustainable Oral Care Is Catching Up

For decades, oral care stayed predictable, bright gels, mystery ingredients and aggressive foaming. Now consumers want: Ingredient transparency, plastic reduction and functional support.

Nathan & Sons built Underbrush around remineralizing ingredients, sugar free formulas, and plastic free innovation. The idea is straightforward. Oral care should actively support long term wellness, not just cover up issues.

That mindset aligns with anyone already investing in clean skincare and functional supplements. Extending that logic to chewing gum feels overdue.

What Makes Chewing Gum “Clean”?

While “clean chewing gum” isn’t a regulated term, most consumers look for:

• No synthetic rubber base
• No artificial additives
• Transparent sourcing
• Functional ingredients

Underbrush checks those boxes. And because chewing gum is already part of your daily routine, this isn’t about adding steps. It’s about upgrading what’s already in your bag.

The Bigger Shift

We’ve seen clean beauty. Clean supplements. Clean household products. Chewing gum is next.

Nathan & Sons are betting that small, consistent swaps create meaningful long term impact. The Smile Reset System reflects that belief. And once you realize conventional chewing gum may contain plastic, it’s hard to ignore.

If you’re curious what a plastic free, remineralizing chewing gum and oral care routine looks like, you can browse the full system here.