Gently Review, Is Gently Non-Toxic?
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.
Across 3 graded products, Gently averages Excellent (75/100). On disclosure, the brand says nothing publicly about PFAS. 3 of its products grade Good or better. Grades are model-based estimates, not lab results.
Worth buying from Gently Good or better, safest first
Gently
Dr Tung's Smart Floss 30 yds
Nylon floss filament
Gum irritation or sensitization from filament design
Frayed or poorly maintained floss can mechanically irritate gums, but this is…
Lower concern. Nylon floss is inherently PFAS-free by composition.
⚠Risky category by default
Gently
ECO DENT FLOSS
Dental floss, likely nylon or plant-based fiber
Microplastic shedding
If the floss base contains any synthetic nylon blended with plant fibers, micro-fibrils…
Fungal or bacterial growth in dispenser
Organic plant-based materials may retain moisture more readily than synthetic polymers if…
Minimal PFAS risk likely, but brand provides no transparency.
⚠Risky category by default
Gently
Reach Gentle Gum Care Floss
nylon dental floss, likely uncoated or waxed
Fragrance allergens (if flavored variant)
Reach produces both unflavored and flavored versions. If this is a mint or cinnamon…
Microplastics
Nylon fibers can shed microscopic fragments during use; however, the amount swallowed per…
Bacterial growth or biofilm on floss if stored wet
Nylon itself is non-absorbent and does not support mold; however, if floss is stored in a…
Lower concern. Floss is rarely PFAS-treated; verify materials directly.
⚠Risky category by default
Every grade uses the same public rubric. How grades work →