Unwaxed Co. · Dental Floss
Dr. Collins Unwaxed Dental Floss
Lower concern, unwaxed nylon floss has no established PFAS coating risk, but brand transparency is absent.
Unwaxed dental floss typically uses nylon monofilament without Teflon-family coating coatings or water-repellent treatments, posing lower PFAS risk than waxed variants. However, 'Unwaxed Co.' makes no public statement on PFAS or material sourcing, leaving composition details unverified.
Shop Unwaxed Co. on Amazon →Material
Unwaxed nylon monofilament
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
Dr. Collins Unwaxed Dental Floss is nylon monofilament without wax coating. Nylon is a synthetic polymer chosen for dental floss because it is strong, thin, and does not degrade easily in the oral environment. Unwaxed variants eliminate the wax layer (often paraffin or plant-based) that coated floss uses for gliding; this makes unwaxed floss thinner and cheaper to produce. No known leaching of nylon monomers or additives occurs under normal oral use, since floss contact is brief and saliva pH is neutral.
The brand's record and disclosure
Unwaxed Co. is a small manufacturer with no established safety controversies or product recalls documented in public safety databases. The brand does not publish detailed ingredient disclosures, material sourcing statements, or third-party certifications (e.g., FDA pre-market review, dental association endorsement). This silence on transparency is typical for budget dental floss but leaves questions about additive choice, nylon source, and manufacturing standards unanswered. No evidence of misleading marketing or quality control failures is on record.
How it compares in its category
Unwaxed floss is the baseline product type in the dental floss market. It is chemically simpler than waxed or flavored variants, which reduces potential exposure to wax residues, colorants, or flavor compounds. Most major brands (Oral-B, Colgate, Reach) offer unwaxed options with similar material profiles and comparable safety records. Dr. Collins positions itself as a low-cost alternative; this typically correlates with less stringent quality signaling but not established hazard elevation.
If you buy it
Use once daily in normal flossing motions; floss is single-use and discarded after each session, minimizing cumulative exposure. Store in a dry environment to prevent mold growth in the dispenser. Replace the spool when strands fray or tension weakens, typically every 1-2 months depending on frequency. No special precautions needed; nylon floss is non-toxic if accidentally swallowed in small amounts (though it should not be intentionally ingested).
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 monomer/oligomer leaching
Nylon monofilament floss is not documented to release nylon monomers or oligomers into saliva under normal oral use. Floss contact is brief and mechanical; no heat or chemical solvent exposure occurs that would promote leaching.
Dye or colorant ingestion
Unwaxed nylon floss is typically undyed (white or natural), eliminating exposure to azo dyes or synthetic colorants. If Dr. Collins uses any pigmentation in the nylon itself, no known adverse events or regulatory warnings are on record.
Microbial contamination in dispenser
Floss dispensers are not sterile and can harbor bacteria or mold if stored in humid bathrooms. This is a use-environment risk, not a product defect, but proper storage and regular replacement reduce microbiological hazard.
Mechanical injury from improper use
Unwaxed floss is thinner and can cut gums if used with excessive force or snapped between teeth. This is a user-technique risk, not a product defect; it applies equally to all unwaxed floss types.
Additives in nylon resin (unspecified)
Dr. Collins does not disclose nylon additives (e.g., stabilizers, plasticizers, slip agents used in floss manufacturing). Industry standards suggest minimal additives, but lack of transparency prevents full hazard rule-out.
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.