Does Cocofloss dental floss have PFAS?
Cocofloss dental floss averages 88 out of 100 on PFAS Authority's PFAS and toxin screen across the 4 Cocofloss dental floss products graded as of October 2026, above the 75 out of 100 median for the 21 other dental floss brands graded alongside it.
Cocofloss dental floss averages Excellent on our four-band scale. 4 of the 4 we graded are worth buying.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
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Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
Cocofloss dental floss worth buying Good or better, best-graded first
- Plant-based waxed fiber floss
- A third party reports verifying it as PFAS-free
- Fragrance allergens and sensitizers. The mint flavoring formulation is not specified; if synthetic fragrance…
- Coconut fiber-based floss
- The brand calls it PFAS-free, which we have not verified
- Microbial growth in natural fiber storage. Coconut fiber is a natural material that can absorb moisture.…
- Woven plant fiber or nylon core
- We found no PFAS statement from the brand
- Microplastic shedding from synthetic core. If the core is nylon (not plant fiber), flossing may shed…
- Woven coconut fiber core
- We found no PFAS statement from the brand
- Microplastic shedding. While coconut fiber itself is not plastic, poor weave quality or excessive mechanical…
2 hazards checked on this product, all on its full breakdown.
Better dental floss from other brands
Graded higher than the Cocofloss average of 88.
- nylon monofilament
- The brand calls it PFAS-free, which we have not verified
- Microplastics
2 hazards checked on this product, all on its full breakdown.
- Nylon floss, waxed coating
- The brand calls it PFAS-free, which we have not verified
- Starting grade for this product type
- Nylon filament (primary material)
- The brand calls it PFAS-free, which we have not verified
- Allergic reaction to nylon or additives
The same question, asked of the other dental floss brands
Best average grade first. Cocofloss averages 88.
See every Cocofloss product we grade on the Cocofloss brand page, or the full dental floss ranking.