Georganics · Dental Floss
Georganics Natural Floss Spearmint
Lower concern; traditional silk floss has no known PFAS risk.
Georganics Natural Floss is made from silk, a natural fiber with no typical fluorochemical treatment needs. The product carries no water-resistance or stain-guard claims that would suggest PFAS coatings. No public lab data available, but the material category itself presents minimal PFAS risk.
Shop Georganics on Amazon →Material
Natural silk floss
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.
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
Georganics Natural Floss is composed of silk fiber, a protein polymer produced by silkworm cocoons, coated with natural wax (typically beeswax or plant-based wax). Silk is chemically inert and biocompatible, meaning it does not leach harmful substances into the oral cavity or bloodstream. Unlike synthetic floss materials such as nylon or polytetrafluoroethylene (Teflon-type coating, also called Teflon), silk carries no known risk of microplastic shedding or Teflon-family coating breakdown during normal use in the mouth.
The brand's record and disclosure
Georganics is a UK-based natural products brand with a stated focus on plastic-free and biodegradable personal care items. The company does not publish detailed third-party safety certifications or test reports for this floss on its website, and makes no explicit PFAS statement. However, the brand's marketing consistently emphasizes natural, unrefined ingredients and plastic-free packaging, which aligns with lower chemical burden philosophies. No recalls or regulatory warnings have been issued for this product.
How it compares in its category
Most commercial dental floss is made from nylon monofilament or Teflon-type coating, both synthetic plastics. Silk floss is a minority category and generally carries lower chemical concerns because silk is a naturally derived fiber with no synthetic coating additives of toxicological concern. Unlike nylon floss (which can shed microplastics with aggressive use) or Teflon-type coating floss (which may release fluorine compounds under friction), silk floss degrades harmlessly and does not persist in the environment.
If you buy it
Silk floss is gentler on gums and less likely to cause micro-abrasion compared to synthetic fibers, making it suitable for daily use. The wax coating will wear naturally with brushing and friction; recoating is not necessary and would occur in storage only if exposed to heat above 60 degrees Celsius (unlikely in normal bathroom conditions). Replace the spool when wax becomes noticeably depleted or the silk begins to fray. Store in a cool, dry place away from direct sunlight to preserve the wax layer.
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.”
Formaldehyde resins in finishes
Silk floss does not require formaldehyde-based binding or curing agents. Natural wax coatings do not release formaldehyde. No evidence of this hazard in silk-based dental floss products.
Heavy metal contamination in fibers
Silk production may involve trace heavy metals (cadmium, lead) from soil or dye processes if the raw silk undergoes industrial bleaching or dyeing. Georganics does not disclose metallurgical testing, so residual heavy metal levels are unknown. Direct oral contact with floss means any transferred metals would be in minimal quantity and unlikely to cause systemic exposure.
Azo dyes
The spearmint variant is likely tinted with natural colorants (e.g., chlorophyll) or synthetic food-grade dyes. Azo dyes are carcinogenic in some formulations, but Georganics does not disclose dye type. No documented cases of harm from floss dyes; oral exposure is incidental and non-ingested.
Wax coating breakdown or ingestion
Natural beeswax and plant waxes are food-grade and non-toxic if ingested in trace amounts (small particles swallowed during flossing). They do not degrade into harmful compounds during normal use. Wax is classified as a food additive (E901) by the European Commission.
Microplastic shedding
Silk is an organic polymer that biodegrades naturally; it does not fragment into persistent microplastics like nylon or Teflon-type coating floss. Any shed silk fibers are chemically equivalent to dietary protein and pose no accumulation risk.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 82% 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.