PresiDent · Dental Floss
3D Dental Dental Floss, Unwaxed Refill, 200 yds, 1/Pk, PR130 | Frontier Dental
Lower PFAS concern; unwaxed nylon floss is a conventional material without known intentional PFAS use, but no brand transparency.
This unwaxed dental floss is made from plain nylon monofilament, a synthetic polymer not inherently associated with PFAS. Unwaxed formulations avoid wax coatings that might contain fluorinated additives.
Shop PresiDent on Amazon →Material
Nylon monofilament, 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
This floss is nylon monofilament, the standard polymer used in dental floss for over 70 years. Unwaxed nylon is simpler in composition than waxed varieties, meaning no added wax film (which may contain additives) enters your mouth. Nylon itself is inert in the oral environment at normal use temperatures and does not degrade or leach under the brief, low-temperature contact of daily flossing. The material poses no known risk of coating breakdown or particle generation during typical use.
The brand's record and disclosure
PresiDent (3D Dental) is a smaller dental supplier brand with no widely documented safety recalls or disclosed controversies in dental floss products. The brand provides no public PFAS statement or third-party certifications (such as ADA Seal or EU organic labels) visible in standard product documentation. Lack of transparency is not evidence of a problem, but absence of independent verification means you cannot confirm ingredient sourcing or manufacturing controls beyond the nylon specification.
How it compares in its category
Unwaxed nylon floss sits at the material baseline of the category. Waxed varieties add paraffin, beeswax, or synthetic polymers that theoretically could contain trace additives; unwaxed eliminates that layer. Most dental floss brands (Oral-B, Glide, Crest, etc.) follow the same unwaxed nylon formula, so this product is functionally equivalent to mainstream competitors. Price and refill format are the main differentiators; safety profile is typical for the category.
If you buy it
Dental floss requires no special storage or maintenance beyond keeping it dry. Use once daily by gentle sliding between teeth; do not force under gums, which is user error, not a product fault. Replace the spool when supply is depleted or if the filament becomes frayed or visibly worn. Floss is single-use consumable with no heating, chemical exposure, or skin contact beyond the oral mucosa, so usage risk is negligible.
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 filament durability and fraying
Unwaxed nylon monofilament can fray or shred if forced under tight contacts or if the spool edge degrades; this is a mechanical issue (usability), not a chemical hazard, and is normal wear.
Oral mucosal irritation from additives
Nylon monofilament itself is well-tolerated in the mouth. No dyes, coatings, or chemical releasers (formaldehyde, azo compounds) are intentionally used in standard dental floss and none are documented in this product.
Heavy metals in nylon polymer
Commercial nylon for dental floss is pharmaceutical-grade or food-contact-compliant in most jurisdictions and is not known to contain cadmium, lead, or antimony as processing residue.
Microplastics generation
Unwaxed nylon floss does not intentionally shed particles during normal use. Theoretical risk exists only if the filament is chewed or forced and fragments are swallowed, which is not typical use; risk is negligible for adults who floss properly.
Allergen or fragrance exposure
Unwaxed nylon floss contains no added fragrance, flavor, or common allergens. The material itself is non-allergenic in standard use; sensitivity would be rare and likely individual.
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.