Cocofloss · Dental Floss
Cocofloss Thin Dental Floss
Lower concern, coconut fiber floss has no known PFAS triggers, but brand provides no explicit assurance.
Cocofloss is made from coconut fiber with wax coating, materials with no established PFAS risk profile in dental floss. The brand does not publicly disclose PFAS testing or make a PFAS-free claim. No third-party verification or government warnings exist for this product.
Shop Cocofloss on Amazon →Material
coconut-derived fiber filament, waxed
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 a filament spun from coconut fiber (coir) rather than nylon or Teflon, then coated with food-grade wax. Coconut fiber is a plant-based cellulose material with no known toxic breakdown products during normal use in the mouth. The wax coating (typically beeswax, carnuba, or synthetic paraffin) is inert at room temperature and saliva pH, making it chemically inert in the oral environment. This formulation avoids both Teflon-family coating (Teflon-type coating) and petroleum-derived synthetics common in conventional floss.
The brand's record and disclosure
Cocofloss markets itself as a natural, eco-conscious alternative but provides no detailed third-party certifications, safety testing reports, or ingredient transparency documents publicly. The brand has not issued explicit PFAS assurances or published independent safety audits. No recalls, compliance violations, or reported adverse events are documented for this product. Marketing emphasizes sustainability over chemical safety, leaving ingredient sourcing and wax composition details largely opaque to consumers.
How it compares in its category
Standard nylon floss carries theoretical Teflon-type coating fume risk (from Teflon coating) and petroleum-derived material concerns; unwaxed floss can shred and leave fibers between teeth. Silk floss biodegrades but may absorb oral microbes if stored damp. Cocofloss occupies a middle ground: plant-based fiber avoids synthetic concerns, but the wax composition and coconut-fiber processing history are not independently verified. Relative to nylon floss, it eliminates Teflon-family coating exposure; relative to natural silk, coconut fiber is more durable and less absorbent.
If you buy it
Store in a dry environment to prevent mold or bacterial growth on the wax coating; discard if it becomes visibly discolored or soft. Use normal flossing technique; coconut fiber will not dissolve in saliva and poses no ingestion hazard if small pieces enter the mouth during cleaning. Replace the container every 6 months or sooner if wax becomes sticky or the fiber frays. No special precautions needed; treat as a routine oral hygiene product.
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.”
Wax coating composition uncertainty
Brand does not publicly disclose the exact wax type (beeswax, carnuba, paraffin, or synthetic blend). Food-grade wax is safe, but lack of transparency prevents independent verification of purity or additives.
Coconut fiber microbial colonization
Plant-derived fibers can harbor moisture and support mold or bacterial growth if stored in humid conditions. Risk is low if kept dry but exceeds that of synthetic floss in high-humidity environments.
Fiber fragmentation and aspiration
Coconut fiber is coarse and durable, so fraying is minimal compared to silk floss. No documented reports of respiratory or ingestion injury from coconut floss fragments.
Pesticide or fungicide residues in raw coconut
Coconut harvesting may expose fiber to agricultural chemicals, but processing and wax coating would isolate residues. No testing data or recalls exist for this product or category.
Allergic sensitization to coconut or wax components
Coconut contact sensitivity is rare but documented in some populations. Undisclosed wax additives (dyes, hardeners, fragrance) could trigger reactions in sensitive users; brand silence on ingredients prevents risk assessment.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 75% 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.