Crest Glide Deepclean Floss Mint, 15m 72
Nylon floss unlikely to contain PFAS, but brand makes no disclosure.
Dental floss is typically nylon without Teflon-family coating coatings. Crest provides no PFAS information, though the material poses lower concern than coated or treated products.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Nylon floss filament
Lab data
No public lab test
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What Crest Glide Deepclean Floss Mint, 15m 72 is made of, ingredients and materials
Crest Glide Deepclean is a nylon monofilament floss, meaning a single continuous strand of polyamide polymer coated or waxed for glide. Nylon is inert in the oral cavity at normal use temperatures and does not leach monomers or plasticizers into saliva under routine flossing. The mint flavoring and any wax coating are applied as thin surface treatments and contact oral tissues briefly, minimizing systemic absorption of any additives.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Fragrance allergens
Mint flavoring is added but Crest does not disclose whether natural or synthetic fragrance compounds are used. Mint-derived or synthetic menthol can trigger contact sensitivity in rare individuals with fragrance allergies, though incidence in oral floss is low given brief mucosal contact.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Formaldehyde / VOCs
Nylon floss does not inherently require formaldehyde-releasing preservatives. No formaldehyde-associated warnings or complaints are on record for Crest Glide or standard nylon floss products.
Source, ATSDR ↗Wax or coating leachables
Floss coating material (wax, resin, or polymer glide layer) is not disclosed by Crest. Standard wax coatings (paraffin, beeswax, or synthetic waxes) are not established allergens or toxins at the low oral doses from flossing, and no safety alerts exist for this product.
Talc contamination
Floss products are not typically formulated with talc. This hazard class does not apply to nylon monofilament floss.
Heavy metals
Crest Glide is an unflavored or clear/mint-tinted product without added colorants requiring pigments. No dyes or pigments requiring heavy metal testing are documented in typical nylon floss formulations.
Source, FDA ↗How is this PFAS grade calculated?
The brand's record and disclosure
Crest (Procter & Gamble) does not publicly disclose the specific composition of floss coatings, wax type, or mint flavoring source. P&G maintains general product safety statements but does not certify floss products to third-party oral care or ingredient standards. No recalls or safety alerts specific to Crest Glide floss are on record. The brand's silence on ingredient transparency is typical of the floss category but limits independent verification of minor additives.
How it compares in its category
Nylon floss is the industry standard and carries lower concern than silk floss (which may be treated with coatings of unknown composition) or plastic-core varieties. Some competitors (e.g., Radius, Unwaxed Oral-B) disclose wax type (beeswax, candelilla) or label as vegan; Crest does not. Among mass-market nylon floss, Crest Glide occupies the mainstream segment with no distinguishing safety advantage or deficit versus similar products.
If you buy it
Use as directed, brief daily contact with tooth and gum surfaces. No heat exposure occurs in normal flossing, so degradation is not a concern. Replace the spool if filament frays, develops persistent odor, or after 12 months of storage to ensure wax integrity. Store in a cool, dry place away from direct sunlight. Discontinue use if gum irritation or allergic response (rare with nylon) occurs and consult a dentist.
What is not known about PFAS in this product?
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Crest has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Crest Glide Deepclean Floss Mint, 15m 72?
- Plant-based waxed fiber floss
- A third party reports verifying it as PFAS-free
- Fragrance allergens and sensitizers
- nylon monofilament
- The brand calls it PFAS-free, which we have not verified
- Microplastics
2 hazards checked on this product, all on its full breakdown.
- Coconut fiber-based floss
- The brand calls it PFAS-free, which we have not verified
- Microbial growth in natural fiber storage
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.