Dr. Tungs Smart Floss: Expanding Natural Dental Floss

Dr. Tungs Smart Floss is the No. 1 selling floss in the natural industry, engineered with a patented multi-filament polyester construction that stretches and expands as it moves between teeth. This expanding action increases surface contact with tooth and gum surfaces, clinically proven to remove up to 55% more plaque than leading flosses and reduce the gum bleeding index by 50.62%.

Unlike conventional flosses, Smart Floss is completely free from PFAS, PTFE, BPA, petrochemical wax, phthalates, artificial flavors, fluoride, latex, gluten, soy, silica, and dairy. EPA-certified laboratory testing confirmed zero detectable organofluorine or perfluorinated compounds across more than 40 screening tests.

The floss is lightly coated with a natural vegetable and beeswax blend — which may include candelilla wax, carnauba wax, castor oil, or rice bran wax — and flavored with natural cardamom essential oil. Its cushion-soft, non-shredding texture suits all mouth types, including tight contacts, wider gaps, and braces.

Packaging is entirely plastic-free: the outer dispenser uses FSC-certified paperboard while an inner sachet made from renewable wood pulp protects the floss flavor. The dispenser is reusable with refill rolls. Dr. Tungs is a cruelty-free brand with no animal testing.