PFAS75/ 100Excellent
Overall67/ 100Good
Meridol Special floss dental floss

Meridol · Dental Floss

Meridol Special floss dental floss

Excellent

Likely lower concern; standard floss has no known PFAS use.

Verdict · BuyNylon/polyester floss with no established hazard record; standard oral-care material with lower concern profile.

Meridol floss is typically nylon or polyester with no wax or coating treatment that would require PFAS. The brand discloses no PFAS information, but the product category presents minimal chemical exposure risk.

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We flunk more products than we pass. This one earned its grade. How we grade

Material

nylon or polyester floss

Brand disclosure

Brand is silent on PFAS

Lab data

No public lab test

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What Meridol Special floss dental floss is made of, ingredients and materials

Meridol Special floss is a nylon or polyester filament product designed for interdental cleaning. Neither nylon nor polyester filaments used in dental floss are known to leach concerning chemicals during normal oral use, as they remain outside the body and contact saliva only briefly. The floss material itself does not involve coatings, dyes, or finishes associated with formaldehyde resins or azo dyes that characterize some textile products.

What’s concerning

♾️

Category baseline

The starting point for this type of product, before anything specific to this product is counted.

80/ 100
♾️

No PFAS disclosure

No public statement from the brand about PFAS in this product.

85/ 100
🧴

Phthalates

If the floss uses polyester, it may contain residual plasticizers such as phthalates from manufacturing. However, oral contact is brief and limited to saliva, and migration into the mouth is not documented as a hazard for dental floss products.

Source, ATSDR ↗
70/ 100
⚠️

Fragrance allergens (if floss is flavored or scented)

Meridol Special is described as a functional floss product; if it contains mint flavoring or fragrance compounds, these may trigger contact sensitivity in individuals with fragrance allergies. No specific allergen warnings or constituent disclosures are publicly available for this brand.

70/ 100

What’s reassuring

✅

Base material not linked to PFAS

The main material recorded for this product is not one associated with PFAS.

100/ 100
💨

Formaldehyde / VOCs

Standard nylon and polyester dental floss do not use formaldehyde-releasing finishes or azo colorants in manufacturing. No such contamination is documented for this product category.

Source, ATSDR ↗
95/ 100
⛏️

Heavy metals

Dental floss does not involve pigments, dyes, or surface coatings that typically carry cadmium or lead. Meridol Special has no reported metal contamination on record.

Source, FDA ↗
95/ 100
✅

Allergic reaction to nylon or polyester material itself

True IgE-mediated allergy to nylon or polyester fibers is extremely rare. Contact irritation or sensitivity to floss is usually driven by added fragrance, wax additives, or mechanical trauma rather than the base fiber.

95/ 100

The full breakdown

The brand's record and disclosure

Meridol is a European oral-care brand (owned by CP Gaba/Sunstar group) with a clinical/professional positioning but limited public transparency on material sourcing or chemical certifications. No major recalls, adverse event reports, or disclosed formulation controversies are on record for this floss product. The brand does not publish detailed material safety data or third-party certifications for the floss itself.

How it compares in its category

Dental floss products are among the lowest-concern items in personal care, as they involve minimal absorption and brief contact with oral tissue. Meridol Special occupies the mainstream segment; it is chemically comparable to standard waxed or unwaxed nylon flosses from other brands. Specialty flosses (silk, bamboo-based, or medicated variants) may introduce different material or coating risks, but this product does not claim such features.

If you buy it

Use as directed for routine interdental cleaning; no special storage or handling precautions are required beyond keeping the container dry. Replace the spool when floss becomes frayed or difficult to thread. Discard used floss in regular waste; it is not a composting or recycling material. Stop use if gum irritation or allergic reaction occurs, though this is uncommon with standard nylon floss.

What we don’t know

Basis
Model estimate, 72% confidence, not a lab result
Lab test
None on record for this exact product
Brand statement
Meridol has made none

Formulations change between production runs, so check the current label. How we grade.

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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.