PFAS75/ 100Excellent
Overall71/ 100Good
Meridol Mint Dental Floss 40m

Meridol · Dental Floss

Meridol Mint Dental Floss 40m

Excellent

Lower concern but no public PFAS assurance; typical dental floss risk is modest.

Verdict · BuyNylon monofilament floss poses minimal established hazards; no brand red flags or recalls on record; PFAS grade acceptable for intra-oral use.

Meridol Mint is standard nylon dental floss with no disclosed coating or treatment. No brand PFAS claims, certifications, or public lab data available. Nylon itself does not inherently contain PFAS, but some dental floss receives fluorine-based coatings.

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

Material

nylon monofilament dental floss

Brand disclosure

Brand is silent on PFAS

Lab data

No public lab test

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What Meridol Mint Dental Floss 40m is made of, ingredients and materials

Meridol Mint Dental Floss is nylon monofilament, a synthetic polymer engineered for tensile strength and oral safety. Nylon does not leach BPA, phthalates, or bisphenols during normal use because it is not plasticized and remains inert at mouth temperature and saliva pH. The mint flavoring is a cosmetic additive; no formaldehyde releasers or 1,4-dioxane contamination has been documented in dental floss products of this type.

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
🫧

Microplastics

Nylon monofilament can shed microscopic fibers if degraded or frayed, but this occurs only at the point of fraying and is minimal in quantity. Shedding is not a documented concern for dental floss under normal use; the amount of nylon fiber released is negligible compared to inhalation or dietary microplastic exposure from other sources.

Source, EPA ↗
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
⛏️

Heavy metals

Meridol Mint Dental Floss uses nylon monofilament, which is typically dyed with synthetic colorants during manufacture. No lead, cadmium, or chromium contamination has been reported in dental floss products; cosmetic-grade synthetic dyes used in floss are not subject to the heavy-metal risks associated with natural pigments in makeup or pigmented ceramics.

Source, FDA ↗
95/ 100
💨

Formaldehyde / VOCs

Mint flavoring in dental floss is a low-concentration cosmetic additive applied post-manufacture. No formaldehyde-releasing preservatives or 1,4-dioxane contamination has been documented in dental floss products. The short intra-oral contact time and negligible ingestion further reduce any theoretical exposure.

Source, ATSDR ↗
95/ 100
🍼

BPA & bisphenols

Nylon monofilament is not plasticized and contains no bisphenol backbone or phthalate plasticizers. Oral exposure to BPA or phthalates from this floss is not a recognized hazard; nylon remains chemically inert under oral conditions.

Source, FDA ↗
95/ 100
✅

Talc contamination in flavoring or coating

No talc-based coatings or fillers are standard in dental floss manufacture. Meridol Mint Dental Floss is not marketed as talc-containing; no talc contamination in dental floss products is on record.

95/ 100

The full breakdown

The brand's record and disclosure

Meridol is owned by COLGAT-PALMOLIVE and markets oral-care products with emphasis on antimicrobial ingredients (zinc, chlorhexidine in rinses). No product recalls, safety controversies, or third-party test failures are on record for Meridol Mint Dental Floss. The brand does not publish PFAS statements for floss; however, dental floss is not subject to the same regulatory transparency demands as larger cosmetic categories. No independent lab data on PFAS content is publicly available for this SKU.

How it compares in its category

Dental floss in nylon monofilament form is the standard in the category and represents lower concern compared to waxed or tape variants that may use additional polymeric coatings. Unwaxed nylon floss (if this product is unwaxed, as typical for Meridol) carries marginally lower concern than waxed products, though wax itself (beeswax, paraffin) poses negligible oral risk. All intra-oral floss products bypass significant systemic exposure due to transient contact and minimal ingestion.

If you buy it

Store in a dry environment; nylon monofilament does not degrade from moisture but may attract dust if exposed. Use once daily; discard the spool if the filament becomes frayed or weakened, as this indicates material fatigue and reduced cleaning efficacy. Do not heat or expose to direct sunlight for extended periods, as nylon can weaken under UV. No special maintenance is required; rinse floss spool with tap water if needed for hygiene.

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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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.