Nathan & Sons Underbrush Gum

Apply to try a free 18-pack of Nathan & Sons Underbrush Gum—support enamel, reduce plaque, and freshen breath.

What it is: Nathan & Sons Underbrush Gum is a free health product sample listed on FreebieAgent.
Who offers it: The offer runs through underbrushinsiders.com for Nathan; FreebieAgent links to the offer and does not ship anything itself.
How to claim: Claim it on the offer site yourself; it runs through a separate sample program, so FreebieAgent cannot auto-claim it.
Status: Posted March 13, 2026; verified still active on August 27, 2026.
Where: Open to US residents.

This one runs through a separate sample program, so FreebieAgent can't auto-claim it. It only takes a minute on the brand's site. Opens on underbrushinsiders.com, not the brand's own site.

FreebieAgent Score

3.1/5

“A decent offer for a free gum pack, but requires signup hurdles.”

— FreebieAgent

FreebieAgent Insights

This offer is for an 18-pack of Underbrush Gum by Nathan & Sons, which claims to support enamel, reduce plaque, and freshen breath. The catch? 'Nathan & Sons' seems to be a ghost brand—we couldn't find any public information about them or this gum outside of this 'Insiders Program.' This isn't a simple free sample; it's an application to potentially test and review an unverified product. While the dental claims sound good, there's zero public reputation to back them up. Proceed with caution, as you'd be testing an unknown.

Added

6 months ago

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