PFAS75/ 100Excellent
Overall67/ 100Good
Meridol Fleece Dental Floss

Meridol · Dental Floss

Meridol Fleece Dental Floss

Excellent

Skip until brand discloses PFAS status or testing.

Verdict · Buy with carePolyester floss with no known hazards beyond PFAS uncertainty. Brand silence on PFAS testing warrants caution; low concern in normal use but disclose request recommended.

Meridol Fleece Dental Floss material composition is not publicly disclosed. Polyester floss typically poses lower PFAS concern than coated varieties, but brand silence on coating and treatment limits confidence.

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

Material

Polyester fleece floss

Brand disclosure

Brand is silent on PFAS

Lab data

No public lab test

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What Meridol Fleece Dental Floss is made of, ingredients and materials

Meridol Fleece Dental Floss is polyester-based, a synthetic polymer chosen for its strength, texture, and ability to hold a fleece structure that aids plaque removal between teeth. Polyester itself does not contain known toxic leachates in oral contact applications at room temperature. The floss is not heated during use and does not come into contact with food preparation surfaces, eliminating common leaching pathways seen in cookware or food storage plastics.

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
⚠️

Fragrance allergens

Meridol brand products often include mint flavor and fragrance compounds. If present in the floss, fragrance may trigger contact sensitivity in individuals with fragrance allergy or oral mucosa irritation, though oral exposure is minimal and brief.

70/ 100
♾️

PFAS

Polyester textiles may be treated with PFAS-based water and oil repellents or may contain legacy PFAS from manufacturing. Meridol has not disclosed testing or exclusion of PFAS, creating uncertainty despite the low ingestion risk inherent to floss use.

Source, ATSDR ↗
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

Polyester fibers used in dental floss do not typically undergo formaldehyde-based resin treatment (common in apparel textiles). No evidence of formaldehyde-releasing finishes on Meridol Fleece Dental Floss is on record.

Source, ATSDR ↗
95/ 100
✅

Azo dyes

Dental floss is typically uncolored or uses trace colorant; Meridol Fleece is white/natural. No documented use of restricted azo dyes in this product class.

95/ 100
✅

Microplastic shedding

Dental floss is designed to remain intact during use. Polyester does not shed microplastics under normal oral friction; degradation would require sustained mechanical abrasion or heat well beyond intra-oral contact conditions.

95/ 100

The full breakdown

The brand's record and disclosure

Meridol is a European oral-care brand (owned by CP Pharma) with a clinical focus; the brand has not published public statements on PFAS content or testing in their floss products. No recalls, safety controversies, or third-party certifications (e.g., Nordic Swan, EU Ecolabel) are on record for this floss. The brand's silence on PFAS status is notable given increasing regulatory scrutiny of textiles and the potential for legacy PFAS in manufacturing or water repellency treatments on polyester fibers, though none is specified in product documentation.

How it compares in its category

Dental floss is a low-risk product category overall because contact is brief, intra-oral, and not ingested. Polyester floss is standard and does not pose the wear-metal risk of some waxed flosses (which may contain lead-contaminated wax in rare cases) or the microplastic shedding concern of some nylon alternatives. Meridol's fleece texture is typical of modern clinical flosses; no material advantage or disadvantage versus competitors is evident from safety data.

If you buy it

Use as directed, insert gently between teeth and use short back-and-forth strokes, avoiding snapping into gums. Replace floss if it frays or loses structure; polyester does not degrade quickly but visible wear signals reduced efficacy. Store in a cool, dry location away from heat or direct sunlight to preserve fiber integrity. No special care required; standard dental hygiene practices apply.

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.