Love of Earth Co. Floss + Glass Case
Lower concern. Floss and glass are inherently PFAS-free materials.
Dental floss and glass are not typical PFAS sources. No evidence of water-repellent coating treatments or fluorinated coatings typical of this product category.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Dental floss (plant-based or silk) and glass case
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Category baseline
cosmetics is a category where PFAS exposure is more common.
Fragrance allergens or undisclosed additives
Marketing implies plant-based composition, but full ingredient lists and fragrance/flavoring disclosures are not publicly available. Some eco-brands add essential oils or flavor agents without detailed allergy labeling.
Microbial growth if floss is stored damp
Organic plant-based fibers in a moist environment may support bacterial or fungal colonization more readily than synthetic alternatives. Proper drying and storage in the glass case are essential for long-term safety.
What’s reassuring
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Dyes or colorants in floss
No public reports of azo dyes, heavy metal pigments, or synthetic colorants in this product. If the floss is dyed, composition and safety testing are not documented in available sources.
Formaldehyde / VOCs
Plant-based and silk fibers do not inherently require formaldehyde for preservation or cross-linking; no known preservation additives are listed or reported for this product.
Source: ATSDR ↗Glass case integrity and microplastic shedding
Glass is chemically stable and does not shed microplastics. However, if the case chips or cracks during use or transport, sharp edges pose a minor physical injury risk but not a chemical hazard.
The full breakdown
What it's made of and why it matters
Dental floss marketed as plant-based (typically cellulose or silk) avoids synthetic polymer matrices that can leach plasticizers or degradation byproducts into the oral cavity. Glass cases are chemically inert and do not leach contaminants into the floss or environment over time. The simplicity of these materials means few synthetic additives or stabilizers are needed, reducing the overall chemical exposure profile compared to nylon or polytetrafluoroethylene (Teflon-type coating) floss variants.
The brand's record and disclosure
Floss & Ploss (trading as Love of Earth Co.) does not appear in public safety databases or recall registries for this product. The brand maintains a silent stance on PFAS, which is not uncommon for smaller eco-focused manufacturers. No third-party certifications (such as EWG verification or NSF listings) are documented for this specific product, and marketing claims about plant-based composition have not been independently verified in available public records.
How it compares in its category
Plant-based or silk floss represents a lower-risk alternative to conventional nylon floss, which may contain dyes, additives, or residual monomers. Glass packaging is superior to plastic cases, which can off-gas volatile organic compounds (VOCs) or leach BPA/BPS over years of storage. However, without third-party testing or certification, claims about plant-based purity cannot be independently confirmed; consumers rely on brand transparency.
If you buy it
Store the floss in the glass case away from direct sunlight and heat to preserve plant fibers and prevent degradation. Replace floss when it becomes frayed, discolored, or develops odor, as these signs indicate microbial growth or fiber breakdown. Clean the glass case occasionally with mild soap and water; allow it to air dry fully before refilling. Discontinue use immediately if gum irritation, bleeding, or allergic reactions occur, as individual sensitivities to plant materials vary.
What we don’t know
- Basis
- Model estimate, 82% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Floss & Ploss has made none
Formulations change between production runs, so check the current label. How we grade.
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.