Cocofloss · Dental Floss
COCOFLOSS Dental Floss
Lower-concern choice; plant-fiber dental floss with no known PFAS trigger materials.
Cocofloss is made from coconut fiber, a plant-based cellulose material with no inherent PFAS risk. The brand makes no PFAS claims and provides minimal ingredient disclosure, but the core material itself does not require water-repellency, non-stick, or stain-resistance treatments typical of PFAS-containing products.
Shop Cocofloss on Amazon →Material
Coconut-derived cellulose fiber
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 manufactured from coconut-derived cellulose fibers, a plant-based alternative to traditional nylon dental floss. Cellulose fibers are biodegradable and do not contain synthetic polymers that typically require chemical coatings to enhance slipperiness or durability. The material is spun into a tape-like form rather than a single strand, which affects cleaning surface area and user comfort but does not introduce additional chemical hazards beyond minor processing additives.
The brand's record and disclosure
Cocofloss maintains a sustainability-focused marketing position emphasizing compostability and plant-based sourcing, though the brand has not published detailed ingredient breakdowns or third-party safety certifications on their website. No recalls, safety complaints, or regulatory actions are on public record for this product. The brand's silence on PFAS is typical for natural-fiber floss products, which do not require water-resistance coatings that typically contain PFAS.
How it compares in its category
Dental floss is a low-risk category overall because contact is brief, intraoral use is minimal ingestion risk, and product lifespan is short. Cocofloss occupies the premium natural-fiber segment; conventional nylon floss often contains synthetic waxes and may include Teflon-type coating or silicone coatings for glide. Plant-based alternatives like Cocofloss avoid these additives but may shred more easily if teeth are very close together, making material choice a practical rather than safety trade-off.
If you buy it
Store Cocofloss in a cool, dry location; cellulose fibers absorb moisture and may degrade or support microbial growth if kept in humid bathrooms long-term. Use gentle sawing motions to reduce shredding; the tape design is strong under tension but not under sideways stress. Replace the container once opened after 1-2 years or if the floss becomes sticky, discolored, or emits an off odor, which signals moisture damage or microbial colonization.
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.”
Microbial growth (bacterial/fungal)
Cellulose fibers are hygroscopic and can absorb water in humid bathroom environments. If moisture accumulates in the container, dormant bacteria or mold may colonize the floss, though intraoral use would typically expose these to saliva and immune response rather than causing systemic infection.
Synthetic dyes or processing residues
No azo dyes, heavy-metal pigments, or formaldehyde-releasing resins are typical in cellulose dental floss production. Cocofloss does not disclose bleaching or whitening agents, but standard food-grade peroxide or chlorine bleaching leaves negligible residues on finished fiber.
Floss shredding and ingestion
Plant-based cellulose floss is more prone to tearing or fraying than nylon, particularly between tight contacts. Swallowing small pieces of floss is low-risk; cellulose is indigestible but passes through the GI tract without harm in normal quantities.
Allergic contact sensitization
Cellulose is a passive biopolymer with minimal allergenic potential. No botanical allergens (coconut contact dermatitis) are documented in dental floss use, though individuals with coconut latex allergy should verify if any processing aids cross-contaminate.
Coating or adhesive chemicals
Unlike synthetic floss, Cocofloss does not rely on wax, Teflon-type coating, or silicone coatings for function. Minor starch or gum-based binders may be present for tape cohesion but are food-safe and non-toxic in oral contact.
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.