Cocofloss · Dental Floss
Cocofloss Woven Dental Floss Refill Delightful Mint
Lower-concern choice; no known PFAS triggers in plain woven plant fiber floss.
Cocofloss's woven floss is made from coconut husk fibers, a natural material with no inherent need for water-repellent or non-stick coatings that typically introduce PFAS. The brand makes no PFAS claims and discloses no special treatments. No public lab testing or recalls flag this product; standard dental floss carries minimal PFAS risk.
Shop Cocofloss on Amazon →Material
woven plant-based fibers (coconut husk) with mint flavoring
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
Cocofloss is woven from coconut husk fibers, a natural cellulose material, rather than nylon or synthetic polymer. The mint flavoring is added as a topical agent to the fibers themselves. Unlike traditional nylon floss, there is no Teflon-type coating (Teflon) coating that releases fumes when heated, and no PVC or polyethylene wrapping that can leach plasticizers. The woven plant-fiber structure is inherently biodegradable and does not generate microplastics during normal use.
The brand's record and disclosure
Cocofloss markets itself as an eco-conscious, plastic-free alternative and has built brand identity around natural materials. However, the brand has published minimal third-party testing data or ingredient certification (no NSF, FDA monograph, or organic certification on file). No known safety recalls, safety complaints, or litigation involving this product exist in public records. The lack of transparency on mint flavoring sources and processing methods is typical for the dental floss category but leaves some uncertainty about additive origins.
How it compares in its category
Dental floss is a low-risk category overall because contact time is brief and ingestion is minimal. Cocofloss avoids several hazards present in conventional nylon floss: no Teflon-type coating fume risk, no phthalate or BPA leaching from synthetic coating, and no microplastic shedding. Plant-based floss competes with silk floss (also low-risk) and waxed nylon (slightly higher chemical exposure). Cocofloss occupies a middle ground: more sustainable than nylon, comparable safety profile, but less established testing history than legacy brands.
If you buy it
Use as directed: brief daily flossing between teeth with standard pressure. No heat exposure, storage in cool dry conditions, or special maintenance is required. Replace the refill when the spool is depleted or fibers fray; there is no accumulation risk or bacterial colonization concern with plant fiber as with porous materials. If mint flavoring causes mouth irritation or allergic reaction, discontinue and switch to unflavored variant or alternative floss.
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.”
Flavoring allergen or irritant (mint)
Mint flavoring is a topical additive and contact allergen in some users. No brand ingredient disclosure on specific mint source (natural vs synthetic menthol); brief oral contact limits risk, but sensitive individuals should test with small use first.
Fiber degradation and small particle ingestion
Woven coconut fibers may shed small cellulose fragments during use, but these are food-grade plant material and pose no known toxicological hazard if swallowed in trace amounts during flossing.
Microbial contamination in storage
Plant-fiber floss in humid conditions could theoretically support mold growth if stored improperly, but no field reports exist. Standard cabinet storage prevents this.
Heavy metals or dyes in coloring
Cocofloss is naturally pale and uncolored, or tinted with plant-based or food-grade dyes. No synthetic azo dyes or heavy-metal pigments are typical in this product class, and none have been reported for this brand.
Residual pesticides from coconut husk sourcing
Coconut husks are agricultural residue; if sourced from conventional farms, trace pesticide residues are theoretically possible but not on record for Cocofloss. Organic certification would eliminate this concern; the brand does not claim organic status.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 78% 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.