What “gum base” can mean
Many mainstream gums list “gum base” without detail. Some reporting and research discuss synthetic polymers (e.g., polyvinyl acetate) in gum base formulations and microplastics shedding during chewing.
What the emerging research suggests
A 2025 study discusses microplastics released during chewing and notes that synthetic gums contain petrochemical derivatives like polyvinyl acetate (while natural gums use plant-derived polymers).
Important: health impacts of microplastics in humans are still being studied—avoid definitive claims.
Cleaner alternative positioning
Some brands position their gum as plastic-free and no synthetic rubbers, using natural saps like chicle/mastic/spruce. Nathan & Sons+1
FAQ
Is plastic-free gum always better?
Better for people who care about ingredient transparency and environmental impact—but choose based on your priorities.
