elmex Dental floss with wax 50 m
Lower concern. Nylon floss is inherently PFAS-resistant.
Elmex waxed dental floss uses nylon, a standard synthetic polymer without known PFAS exposure routes in oral care. No PFAS disclosures found, but material category presents minimal risk.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Nylon floss with wax coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What elmex Dental floss with wax 50 m is made of, ingredients and materials
elmex Dental floss is nylon (polyamide 6 or 6.6) coated with wax, typically beeswax or synthetic paraffin. Nylon is a thermoplastic polymer that does not leach monomers or BPA during normal oral use, since floss remains at mouth temperature and is not heated. The wax coating serves as a lubricant and helps the floss glide between teeth without fraying; it is food-safe and inert in the oral environment.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Nylon degradation and microfiber release
Nylon fibers may fragment during aggressive flossing, creating microscopic fibers that are swallowed. This is mechanical wear, not chemical leaching; the health impact of ingested nylon microfibers from floss is not established in scientific literature. Risk is theoretical and likely minimal given the small mass of material per use.
Bacterial contamination during storage
Floss stored in humid bathrooms may develop mold or bacterial biofilm on the spool if the container is not sealed. This is a storage hygiene issue, not a manufacturing defect. Proper dry storage prevents this.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Wax coating additives (colorants, preservatives)
Elmex does not disclose specific wax composition or additives. Synthetic paraffin wax and natural beeswax are both food-safe and carry no established systemic toxicity when ingested in trace amounts via floss use. No product recalls for wax contamination on record.
Dye or fragrance allergens
Elmex floss is typically uncolored or white (titanium dioxide) and unflavored or lightly flavored. No documented reports of allergic reactions to elmex floss. Individual sensitivity to wax or nylon is rare but possible; discontinue use if oral irritation occurs.
The full breakdown
The brand's record and disclosure
Elmex, owned by COLGATE-PALMOLIVE, does not publicly disclose detailed material sourcing or chemical composition reports for this floss product. The brand maintains ISO 9001 manufacturing certification and complies with EU Cosmetics Regulation for oral care products. No product-specific safety recalls or contamination incidents are publicly documented for elmex dental floss. The parent company's transparency on chemical safety is moderate but does not extend to itemized floss ingredient disclosure.
How it compares in its category
Dental floss is a low-risk oral care category because it is used in small quantities, briefly, and does not contact high-temperature food or liquid. Nylon floss is chemically similar to other mainstream brands (Oral-B, Listerine, Reach). Waxed nylon floss is more durable and less prone to shredding than unwaxed varieties, reducing physical irritation. elmex's 50-meter spool is standard; no distinguishing safety profile versus competitors.
If you buy it
Store in a cool, dry location away from direct sunlight to preserve wax coating integrity. Use once daily or as recommended by your dentist; discard and replace the spool if wax becomes sticky, floss frays, or odor develops, which may indicate mold growth in humid bathrooms. Floss is single-use; do not reuse strands. No special precautions needed beyond normal oral hygiene practice.
What we don’t know
- Basis
- Model estimate, 78% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Elmex has made none
Formulations change between production runs, so check the current label. How we grade.
Better-graded alternatives in Dental Floss
Oral-B
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- Microbial growth in natural fiber storage
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- Nylon floss, waxed coating
- The brand calls it PFAS-free, which we have not verified
- Starting grade for this product type
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.