Elmex · Dental Floss
Elmex Waxed Dental Floss
Lower-concern choice; waxed nylon floss has no known PFAS red flags, but Elmex provides no transparency.
Elmex waxed dental floss is a traditional nylon-plus-wax product with no documented PFAS use or Teflon-family coating. Unlike waterproofing treatments on textiles or non-stick coatings on cookware, dental floss wax does not typically require PFAS chemistry.
Shop Elmex on Amazon →Material
Nylon filament with wax coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
cosmetics is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
Elmex Waxed Dental Floss is a nylon filament core coated with wax (likely paraffin or beeswax blend). Nylon is a synthetic polymer that does not leach monomers like BPA during normal oral use because saliva exposure is brief and low-temperature. The wax coating reduces friction and aids food debris removal; wax itself is inert in the mouth and poses no chemical hazard at the trace quantities present in floss.
The brand's record and disclosure
Elmex is owned by BASF, a major chemical manufacturer with publicly stated commitments to safety but limited transparent disclosure on specific floss formulation or PFAS use. No recalls, safety controversies, or third-party certifications (e.g., EWG Verified) are on record for Elmex dental floss. The brand does not publish detailed ingredient safety data or PFAS testing results for this product, which is typical for the dental floss category but limits independent verification.
How it compares in its category
Most waxed nylon flosses (Oral-B, Colgate, store brands) have identical material composition and chemical profiles. Unwaxed nylon floss offers marginally lower material load but provides no measurable safety advantage. Silk floss alternatives exist but are costlier and degrade faster. Elmex is a mid-market option with no documented hazard profile distinct from competitors.
If you buy it
Use once daily; no special handling required. Do not heat or melt the floss intentionally, though normal mouth temperature poses no risk. Replace the spool when filaments fray or wax degradation becomes visible (typically 6-12 months of household storage). Store in a cool, dry location; no special disposal precautions are necessary beyond household trash.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Nylon monomer leaching (caprolactam)
Nylon monomer release occurs primarily at elevated temperatures (>60C). Oral floss never reaches these temperatures in normal use; no cases of toxicity from dental floss nylon have been documented.
Wax coating contaminants (heavy metals, microbes)
Paraffin and beeswax used in food-grade applications are refined to remove heavy metal impurities. No recalls or safety alerts exist for Elmex floss due to wax contamination. Microbial growth is prevented by the dry spool environment.
Wax ingestion during use
Small amounts of wax may be swallowed during flossing. Food-grade wax is non-toxic and passes through the digestive tract unchanged; this is not a hazard but a normal exposure with no health consequence.
Allergic reaction to nylon or wax
Nylon and food-grade wax are low-allergen materials. No documented cases of contact allergy or oral reactions to Elmex floss exist in published safety literature.
Fragrance or flavor additives (if present)
Elmex Waxed Dental Floss is listed as unflavored or with minimal mint flavoring. No synthetic fragrances or allergen-prone additives have been identified on packaging or in safety data.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Dental Floss
Cocofloss
Refill Trio
Coconut fiber, based floss with plant-based coating
Lower-concern dental product; natural materials and transparent PFAS stance, but no independent verification.
⚠Risky category by default
Dental Lace
Refillable Silk Dental Floss
Silk floss with compostable refillable packaging
Lower concern; silk floss with credible PFAS-free positioning and third-party certification.
✓Verified PFAS-free by a third party
Dental Lace
Plant Based/Vegan Floss Refillable Glass Container PFAS-Free (2 Spools/4-
Plant-based vegan floss (likely plant cellulose or silk fibers)
Lower-concern product with explicit PFAS-free claim; no third-party verification limits certainty.
⚠Risky category by default
More dental floss grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.