Refill Trio vs Compostable Dental Floss: which is safer?

Dental Lace Compostable Dental Floss is our pick: better on PFAS and on the overall hazard picture.

Cocofloss

Refill Trio

PFAS grade

A 100/100

Overall grade

B 88/100

Verdict

Buy

Hazard flags

⚑ 3

Material

Coconut fiber, based floss with plant-based coating

Confidence

72%

PossiblePlant-based coating degradation and mold contamination

PossibleAllergic reaction to plant-based coating or coconut fiber

PossibleSplintering or fiber fragmentation

Why this gradeBuy

Our pick

Dental Lace

Compostable Dental Floss

PFAS grade

A 100/100

Overall grade

A 92/100

Verdict

Buy

Hazard flags

⚑ 2

Material

Plant-based cellulose (wood pulp), organic mint flavoring

Confidence

82%

PossibleHeavy metals in organic ingredients

PossibleMold or bacterial growth in storage

Why this gradeBuy

Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →

More dental floss: see the full ranking