Euthymol · Dental Floss
Euthymol Classic Floss Classic heritage meets Modern precision—glide your way to a legendary clean
Lower PFAS concern typical for dental floss; brand offers no transparency on coating composition.
Euthymol Classic Floss is a traditional nylon dental product with no disclosed PFAS concerns or special coatings known to introduce forever chemicals. The brand provides no public statement on PFAS, which is standard for heritage dental floss products.
Shop Euthymol on Amazon →Material
Nylon floss (waxed or unwaxed)
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
Euthymol Classic Floss is nylon monofilament or multifilament, typically coated with wax (often paraffin or beeswax blends) to aid gliding and prevent fraying. Nylon is a synthetic polymer with no known leaching of toxic monomers under normal oral use, since floss never reaches temperatures that degrade nylon and saliva is not a strong solvent. The wax coating is food-grade and poses no toxicity risk if swallowed in trace amounts during flossing.
The brand's record and disclosure
Euthymol is a heritage British oral-care brand with no documented safety recalls or controversies on their floss products. The brand does not publicly disclose detailed coating composition or PFAS status, which is typical across the dental floss industry and not unusual for products in this low-risk category. No independent testing or third-party certifications (organic, non-GMO, etc.) are advertised, but such certifications are rare and not expected for floss.
How it compares in its category
Dental floss is one of the lowest-risk oral-care products in terms of systemic chemical exposure, since the contact surface area is small and residence time in the mouth is brief. Euthymol's nylon formulation is standard and comparable to market leaders like Oral-B and Listerine floss. Unwaxed or plant-wax variants exist elsewhere, but offer no measurable safety advantage over traditional paraffin wax on nylon.
If you buy it
Use as directed: gentle, daily flossing for 1-2 minutes. Do not swallow large quantities; trace wax ingestion is harmless. Replace the spool if the floss frays, shreds, or becomes difficult to guide, typically every 3-6 months depending on usage. Store in a cool, dry place to prevent moisture degradation of the nylon. No special precautions needed for children or pregnant individuals.
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.”
Teflon-type coating/synthetic polymer fume inhalation
Dental floss does not undergo heating during manufacture or use; Teflon-type coating is not a standard component of nylon floss. No fume risk is established for this product class.
Nylon monomer (caprolactam) leaching
Nylon floss does not reach temperatures or pH extremes that would cause residual monomers to leach into saliva. No toxicity data support risk from trace monomer exposure during oral flossing.
Wax coating contaminants (heavy metals, additives)
Paraffin and beeswax coatings are generally food-safe, but Euthymol does not disclose pigments, dyes, or trace-metal content in the wax. Industry-standard testing would catch major contaminants, but independent verification is unavailable for this specific product.
Fragrance or flavoring allergens
Euthymol floss may include mint, cinnamon, or other flavor compounds to match the brand's toothpaste line. Oral contact with fragrance allergens is rare but possible in individuals with severe sensitivities; ingredients are not listed on most floss packaging.
Bacterial growth on damp spool
If stored in a humid bathroom cabinet for extended periods, the nylon and wax matrix can support mold or bacterial biofilm. Regular replacement and dry storage mitigate this risk entirely.
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.