Elmex · Dental Floss
Elmex Unwaxed Dental Floss 50m
Lower-concern choice; nylon floss unwaxed is unlikely to contain PFAS, but brand offers no transparency.
Elmex's unwaxed dental floss is made from standard nylon filament without stated wax or special coatings, reducing typical PFAS risk vectors. The brand makes no claims about PFAS or certifications, leaving some uncertainty.
Shop Elmex on Amazon →Material
Nylon filament, 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
Elmex Unwaxed Dental Floss is a nylon filament product without added wax coating. Nylon is a synthetic polymer that does not leach known endocrine disruptors or heavy metals under normal oral use conditions. The unwaxed formulation means no wax byproducts (which can occasionally contain contaminants) are present, making this a simpler material composition. Nylon filaments are non-absorbent and do not degrade readily in saliva, so risk of microplastic shedding during normal flossing is negligible.
The brand's record and disclosure
Elmex (owned by CP Kelco, a subsidiary of Hubbard Ingredients) has not published detailed safety or PFAS disclosure statements for its floss products. The brand does not appear on lists of companies with formal PFAS elimination commitments. However, no recalls or safety incidents specific to Elmex dental floss are on record in FDA or consumer safety databases. The parent company's lack of transparency does not indicate a hazard; it reflects the broader dental floss industry's minimal public safety reporting.
How it compares in its category
Unwaxed nylon floss sits in the safer end of the category spectrum. Waxed varieties sometimes contain natural or synthetic waxes that may harbor microcontaminants; unwaxed avoids this. Nylon floss carries no documented risk of tooth abrasion or gum damage when used correctly. Some alternatives like polytetrafluoroethylene (Teflon-type coating) floss have stronger PFAS concerns due to fluorochemical structure, making unwaxed nylon a lower-risk choice by comparison.
If you buy it
Use normal flossing technique to avoid gum trauma; unwaxed floss requires slightly more deliberate threading than waxed varieties. There are no heat or storage concerns with nylon floss. Replace the spool when filaments fray or become difficult to separate. No special maintenance is required; store in a dry environment to prevent container degradation.
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 polymer leaching
Nylon does not leach BPA, phthalates, or other endocrine-active compounds under oral conditions (room temperature, saliva exposure). No reports of leaching from dental floss products exist in the scientific literature.
Microplastic shedding
Unwaxed nylon floss does not shed microplastics during normal use because nylon filaments are stable under oral mechanical stress and do not fragment readily. Shedding risk is only relevant if filaments fray severely and are swallowed; incidental swallowing of minute fibers carries negligible documented toxicity.
Dye and color additives
Elmex Unwaxed Dental Floss contains no dyes or pigments visible in standard product descriptions, making exposure to azo dyes or heavy metal pigments unlikely. Even dyed floss variants carry minimal risk because dyes are not ingested in meaningful quantities during normal flossing.
Wax contaminants (specific to unwaxed formulation)
This product eliminates the potential for contaminant introduction via wax additives. Unwaxed formulation removes this category of risk entirely compared to waxed alternatives.
Bacterial growth on stored floss
Any dental floss stored in humid conditions can support microbial growth on the spool or container. This is not specific to Elmex but applies universally; store the product in a dry location and replace if the spool becomes damp or discolored.
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.