Georganics · Dental Floss
Georganics Bionylon Floss – Spearmint
Lower-concern plant-based floss; no PFAS evidence, but brand silent on sourcing.
Georganics Bionylon Floss is marketed as a bio-based polyamide (nylon 6.10) derived from castor oil rather than petroleum, which reduces likelihood of PFAS coatings typical in synthetic fibers. The brand does not claim PFAS-free status nor disclose manufacturing details, making full verification impossible without independent testing.
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Bionylon (polyamide 6.10 from castor oil)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
cosmetics is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
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
Bionylon is a polyamide 6.10 derived from castor oil rather than petroleum, making it a renewable polymer base. Unlike traditional nylon floss, this plant-derived formulation carries no documented risk of microplastic shedding during use, as polyamides from bio-sources degrade similarly to fossil equivalents but originate from managed agricultural cycles. The spearmint flavoring is a minor additive; no published data links spearmint essential oils in dental products to systemic toxicity at typical use volumes (a few meters of floss weekly).
The brand's record and disclosure
Georganics markets itself as a natural personal care brand and publishes ingredient lists transparently on product pages. The company does not provide third-party certifications (e.g., B-Corp, organic seal) or formal PFAS testing statements, leaving sourcing transparency incomplete. No recalls or safety controversies are on record for this product or brand as of current public databases. The silent stance on PFAS sourcing is typical for smaller natural brands but represents a gap in verification.
How it compares in its category
Most conventional dental floss uses either nylon (petroleum-derived) or Teflon (Teflon-type coating), both of which carry theoretical microplastic and PFAS concerns respectively. Georganics Bionylon avoids Teflon-type coating entirely and uses a renewable nylon base, positioning it in the lower-risk subset of the market. Competitor floss brands offering similar plant-based or compostable alternatives (e.g., Radius, Humble Brush) carry comparable or slightly better third-party certifications, but Georganics pricing and availability are competitive.
If you buy it
Use as directed: floss once daily, using approximately 18 inches per session. Store in a cool, dry place away from heat sources to prevent any minor leaching of spearmint oils into the container (though risk is negligible). No special care is required; the product is single-use consumable. Replace the spool when depleted; there is no reusable component requiring maintenance.
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.”
Microplastic shedding
Polyamide floss is not established to shed microplastics during normal flossing. Unlike toothbrushes or microbeads, dental floss is not abraded significantly by tooth surfaces.
Fragrance allergens (spearmint)
Spearmint essential oil is a natural allergen in sensitive individuals. Oral contact is brief and low-volume, but if gum irritation or allergic dermatitis develops, discontinue use. Cross-reactivity with mint allergies is documented but uncommon.
Polyamide polymer degradation products
No published toxicology data exists for Bionylon-specific monomers or oligomers leaching into saliva. Polyamide 6.10 is recognized as a stable polymer under oral pH and temperature; degradation risk is theoretical and unvalidated.
Dye or pigment contamination
Spearmint-colored floss relies on natural colorants or approved synthetic dyes. Georganics does not disclose dye chemistry; no heavy metals (cadmium, lead) are typical in food-contact dental products, but verification is absent.
Castor oil allergen residues
Although polymerized, trace castor oil residues could theoretically remain in Bionylon. Castor oil is a documented allergen in sensitive populations, but ingestion risk from floss is minimal given the small contact area and brief exposure time.
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.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Dental Floss
Cocofloss
Refill Trio
Coconut fiber, based floss with plant-based coating
Lower-concern dental product; natural materials and transparent PFAS stance, but no independent verification.
⚠Risky category by default
Dental Lace
Refillable Silk Dental Floss
Silk floss with compostable refillable packaging
Lower concern; silk floss with credible PFAS-free positioning and third-party certification.
✓Verified PFAS-free by a third party
Dental Lace
Plant Based/Vegan Floss Refillable Glass Container PFAS-Free (2 Spools/4-
Plant-based vegan floss (likely plant cellulose or silk fibers)
Lower-concern product with explicit PFAS-free claim; no third-party verification limits certainty.
⚠Risky category by default
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.