Isodent · Dental Floss
Dental Floss, Nylon, Waxed, 200 yd., DAR48058
Lower-concern option; standard waxed nylon floss unlikely to contain intentional PFAS, but no brand transparency.
Waxed nylon dental floss is a conventional product without known PFAS-prone features like water-resistant or stain-resistant treatments. No public disclosure from Isodent about PFAS presence or absence.
Shop Isodent on Amazon →Material
Nylon filament, 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
This floss is nylon filament (polyamide polymer) coated with wax, a common dental floss construction. Nylon is a synthetic polymer chosen for strength and flexibility; the wax coating (typically paraffin, beeswax, or candelilla wax) aids gliding between teeth and does not enter the bloodstream because floss is not swallowed in normal use. The nylon filament itself is chemically inert when used as intended and poses no known leaching risk during oral contact.
The brand's record and disclosure
Isodent has not published transparency statements or third-party certifications regarding PFAS, heavy metals, or manufacturing controls specific to this product line. No recalls or safety incidents for this SKU (DAR48058) are on public record. The brand maintains a silent posture on ingredient sourcing and testing, which is typical for smaller dental floss manufacturers but limits consumer verification of claims.
How it compares in its category
Waxed nylon floss is the most common floss type globally and carries a lower PFAS concern than newer synthetic alternatives (e.g., some polytetrafluoroethylene-based flosses). It is comparable in safety profile to store-brand equivalents. Unwaxed nylon and silk alternatives exist but offer no material safety advantage; silk is not regulated differently and waxed varieties across brands show similar ingredient profiles.
If you buy it
Use as directed: insert between teeth gently and do not swallow floss fibers. Replace the spool when the floss becomes frayed, shredded, or difficult to handle, or annually if used daily. Store in a cool, dry place away from direct sunlight to prevent wax degradation. Do not expose to heat or flame, as nylon can melt and wax may soften, though neither hazard applies to normal storage or oral use.
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 microabrasion
Properly used waxed nylon floss does not cause clinically significant gum abrasion. Risk of tissue injury is operator-dependent (aggressive flossing technique) rather than product-specific.
Wax coating swallowing/ingestion
Small amounts of wax incidentally swallowed during flossing are non-toxic and pass through the GI tract without absorption. Paraffin, beeswax, and plant waxes are food-grade or food-contact approved by regulatory bodies.
Heavy metals in nylon resin or wax
No recalls or test reports indicate lead, cadmium, or other heavy metals in commercial nylon floss. Dental-grade nylon is not known to be contaminated in finished products, though no brand-specific testing for Isodent DAR48058 is published.
Allergen contact (fragrance or additives in wax)
If wax coating includes fragrance or dyes, individuals with contact sensitivities may experience gum irritation. Product label does not specify wax type or additives; contact Isodent directly if history of oral product sensitivity exists.
Spool contamination or degradation
Standard plastic spools (typically polypropylene or polystyrene) do not leach into floss under normal storage. Inspect spool for cracks or discoloration indicating age; replace if stored for more than 3 years.
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.