Crest Braces Care Floss Threader Single-Use Packets
Lower concern single-use item; no known PFAS risk identified.
Crest floss threaders are simple plastic tools with no water repellent or nonstick finish reported. No PFAS claims or disclosures found, but no indicators of PFAS use either.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Polyester or nylon floss threader, no identified coating
Lab data
No public lab test
You may also be interested in
Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
What Crest Braces Care Floss Threader Packets is made of, ingredients and materials
Crest Braces Care Floss Threader is constructed from polyester or nylon, both thermoplastic polymers commonly used in single-use oral care aids. Neither material is known to leach BPA, BPS, or phthalates under normal room-temperature storage or brief oral use. The threader is not exposed to heat during use (human mouth temperature ~37°C is well below polymer degradation thresholds), and the product design includes no identified glazes, coatings, or surface treatments that would introduce additional chemical concerns.
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.
Microplastics
Single-use polyester or nylon threaders may shed microscopic fibers during extended use or if material becomes brittle; however, oral contact duration is brief and ingestion of significant microplastic quantities is unlikely from normal flossing.
Source, EPA ↗What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Formaldehyde / VOCs
Polyester and nylon are not known to off-gas formaldehyde or formaldehyde releasers under normal storage or use conditions; no formaldehyde-based resins or finishes are identified on this product.
Source, ATSDR ↗Phthalates
Standard polyester and nylon floss threaders do not require phthalate plasticizers; no flexible vinyl or PVC components are present in this product design.
Source, ATSDR ↗Heavy metals
If the threader is dyed or pigmented, no documented safety alerts or metal contamination have been recorded for Crest-branded oral care accessories; however, specific pigment sourcing is not publicly disclosed.
Source, FDA ↗Polymer degradation and leaching
Polyester and nylon are stable at body temperature and saliva pH; no chemical leaching from the threader material itself is established for this product or material class under normal oral use.
How is this PFAS grade calculated?
The brand's record and disclosure
Crest, owned by Procter & Gamble, maintains FDA compliance for oral care products but does not publicly disclose detailed material or chemical sourcing for single-use accessories. No recalls, safety warnings, or documented chemical contamination incidents specific to this floss threader product have been recorded in FDA databases or independent monitoring. The brand's PFAS stance is silent, though PFAS assessment of the product itself is graded lower concern for this single-use application.
How it compares in its category
Single-use floss threaders are among the lowest-concern oral care aids; they involve minimal oral contact duration and no heat exposure. Compared to reusable metal threaders or floss picks with adhesive coatings, disposable polyester/nylon threaders avoid concerns about coating durability or repeated-use leaching. This product category poses substantially lower chemical exposure risk than, for example, orthodontic adhesives or whitening gels.
If you buy it
Store packets at room temperature away from direct sunlight to prevent any potential polymer embrittlement over extended shelf life. Use the threader briefly during flossing and discard after single use as designed; do not reuse or expose to heat sources. If packets are stored for more than 2-3 years, replace with fresh stock to ensure material integrity. Discontinue use if the threader becomes visibly brittle, discolored, or produces a chemical odor, although such degradation is not expected under normal home storage.
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 Braces Care Floss Threader Single-Use Packets?
- 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.