Cocofloss Dental Floss
Brand PFAS statement on record, which we have not verified.
Cocolab says Cocofloss is made without intentionally added PFAS. We record that as an unverified brand claim.
Brand says: “Cocolab says Cocofloss is made without intentionally added PFAS.”
We flunk more products than we pass. This one earned its grade. How we grade
Material
Coconut fiber-based floss
Brand disclosure
Brand claims PFAS-free
Lab data
No public lab test
What Cocofloss Dental Floss is made of, ingredients and materials
Cocofloss is a plant-based dental floss made from coconut fiber rather than nylon or polyester. Coconut fiber is a cellulose-rich natural material with minimal chemical processing in the fiber itself. The floss may include a wax coating for slip and glide; if plant-based (common in this brand category), this avoids synthetic polymer residues. Natural fiber flosses do not shed microplastics during normal flossing.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
Microbial growth in natural fiber storage
Coconut fiber is a natural material that can absorb moisture. Improper storage in humid bathrooms may promote mold or bacterial growth on the floss surface; this is a handling issue, not a manufacturing defect.
What’s reassuring
Brand-stated PFAS-free
The brand states this product is PFAS-free. We have not verified the claim.
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Wax coating composition (if non-botanical origin)
If the wax is plant-derived (common for this brand), no hazard is established. If mineral or synthetic paraffin is used, inhalation risk is minimal during flossing, but composition disclosure would clarify this.
Fragrance additives or essential oils
No established fragrance allergens or undisclosed components are on record for Cocofloss. If peppermint or other flavorings are added, contact dermatitis risk is very low in the mouth.
Heavy metals
Coconut fiber naturally contains trace minerals but no bioavailable heavy metals are documented in food-grade or oral-use coconut products. No recalls or testing violations are on record.
Source, FDA ↗Formaldehyde / VOCs
Coconut-based floss does not require formaldehyde-based adhesives or resins. This hazard is irrelevant to this material category.
Source, ATSDR ↗The full breakdown
The brand's record and disclosure
DentaFloss explicitly markets Cocofloss as PFAS-free and emphasizes coconut-derived materials. No major product recalls or safety controversies are on public record for this product. The brand's transparency on material composition is stronger than typical for dental floss manufacturers. Third-party certifications specific to this product line are not widely documented in open sources.
How it compares in its category
Most conventional dental flosses use nylon or Teflon-type coating (often treated with water-repellent coatings that historically contained PFAS). Cocofloss occupies the natural-fiber segment, which avoids synthetic polymer hazards but sacrifices durability and uniformity. Plant-based alternatives typically cost more and may degrade faster under humid storage. The absence of Teflon-type coating eliminates fume risks from heating (not relevant to floss, but important in cookware comparisons).
If you buy it
Store in a cool, dry place to prevent mold or fiber degradation; coconut fiber is hygroscopic. Use normal flossing technique; natural fibers may shred if forced between tight contacts. Replace the package if fibers appear discolored or develop odor, signaling microbial growth. Check the wax coating composition if you have sensitive skin or fragrance allergies, though coconut-based versions are generally hypoallergenic.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- DentaFloss has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
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.