Cocofloss · Dental Floss
Cocofloss Refill Trio
Lower-concern dental product; natural materials and transparent PFAS stance, but no independent verification.
Cocofloss Refill Trio is made from coconut fiber, a plant-based material with no inherent PFAS risk. The brand explicitly markets the product as PFAS-free and avoids synthetic coatings typical of conventional floss.
Brand says: “Cocofloss is made from coconut fiber and marketed as free from PFAS and other synthetic chemicals”
Shop Cocofloss on Amazon →Material
Coconut fiber, based floss with plant-based coating
Brand disclosure
Brand claims PFAS-free
Lab data
No public lab test
Why this grade
Category baseline
cosmetics is a category where PFAS exposure is more common.
Brand-stated PFAS-free
The brand states the product is PFAS-free (self-declared).
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 Refill Trio uses coconut fiber as its primary flossing material, coated with a plant-based wax or resin to improve glide and durability. Coconut fiber is a natural, biodegradable material with no known toxicological concerns in dental floss applications. The plant-based coating replaces synthetic polymers like nylon or Teflon-type coating, reducing exposure to microplastics and synthetic chemical leachates during daily use in the mouth.
The brand's record and disclosure
Cocofloss has made explicit PFAS-free claims and emphasizes plant-derived, sustainable sourcing as core brand messaging. No product recalls, manufacturing controversies, or third-party safety violations are on record for this brand in the dental floss category. The company has not published independent lab verification (e.g., third-party certification for absence of heavy metals or contaminants), but this is uncommon across most consumer dental floss brands.
How it compares in its category
Most conventional dental floss is nylon-based with synthetic coatings; some premium brands use silk or plant fibers. Cocofloss occupies the natural-fiber segment and avoids Teflon-type coating (Teflon), which can release fumes if overheated but is not a concern in normal flossing. Compared to nylon floss, coconut fiber is more biodegradable and carries lower microplastic persistence; compared to silk, it is vegan and typically lower cost.
If you buy it
Use as directed on the packaging; no special storage or temperature precautions are needed for dental floss. Replace the refill when fibers fray or glide becomes difficult, typically every 2-4 months depending on usage. Store in a dry environment to prevent mold or moisture degradation of the plant-based coating. Discontinue use if you experience gum irritation and consult a dentist.
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.”
Plant-based coating degradation and mold contamination
Natural coatings on coconut fiber may degrade faster than synthetic alternatives in humid environments, potentially allowing bacterial or mold growth. No recalls or consumer reports of this issue have been documented for Cocofloss, but long-term storage in bathrooms or high-humidity settings is a theoretical risk for any plant-based dental product.
Heavy metal contaminants in natural fiber sourcing
Coconut fiber sourced from certain agricultural regions can accumulate trace metals (cadmium, lead) depending on soil composition. Cocofloss has not published independent testing for heavy metals, and no regulatory alerts or consumer reports suggest contamination in this product; risk is considered very low for a floss product used briefly in the mouth.
Allergic reaction to plant-based coating or coconut fiber
Individuals with severe coconut or plant resin allergies may experience oral irritation or contact dermatitis; this is rare but well-documented for natural rubber and plant-derived products. Cocofloss labeling does not appear to list specific allergen warnings, so consumers with known sensitivities should test on a small area first.
Microplastic generation during use
Coconut fiber, being natural and biodegradable, is unlikely to shed microplastics in the manner of synthetic nylon or Teflon-type coating floss. No studies or consumer reports of microplastic shedding from Cocofloss have been identified; this is a theoretical advantage over synthetic alternatives.
Splintering or fiber fragmentation
Natural coconut fiber may splinter or shed individual fibers more readily than nylon, particularly if the plant-based coating wears away. While unlikely to cause injury, ingestion of loose fibers is theoretically possible; proper storage and timely replacement minimize this risk.
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.
Formulations and coatings change between production runs. Always check the current label before buying.
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.