Glide Pro-Health Comfort Floss

Name: Glide Pro-Health Comfort Floss
Brand: Oral-B

PFR Grade

Poor — significant plastic content, use with caution

PTFE-coated dental floss. PFAS detected in Oral-B Glide floss by Silent Spring Institute (2019). Women who used Glide floss had higher PFAS blood levels. Oral-B is the most popular dental floss brand in the US.

PFR Caution

PTFE-coated dental floss. PFAS detected in Oral-B Glide floss by Silent Spring Institute (2019). Oral-B is the most popular dental floss brand.

Score Breakdown

How scores are calculated

Materials (40%): How plastic-free the product is — raw materials, construction, and coatings.

Packaging (20%): Is the product packaged in plastic? Is it recyclable?

Transparency (20%): Does the brand disclose ingredients, sourcing, and manufacturing?

Durability (20%): How long does it last? Longer-lasting products reduce plastic waste over time.

Materials

Packaging

Transparency

Durability

$5See Safer Alternatives in Oral Care

This is a rating of this specific product only — not the company. Other products from this brand may score differently.

Last updated: April 6, 2026

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High Exposure Risk — Why This Product Category Matters

Conventional toothpaste and mouthwash contain triclosan (an endocrine disruptor), sodium lauryl sulfate (SLS, a skin irritant), artificial sweeteners, and microbeads. The mouth is one of the most absorptive surfaces in the body — chemicals applied to the mouth absorb directly into the bloodstream.

Synthetic Plastic Content

80%

synthetic plastic by weight

Why We Rated It This Way

Oral-B Glide floss is coated with PTFE — a PFAS-related chemical. A 2019 Silent Spring Institute study found that women who used Glide floss had significantly higher PFAS blood levels. Natural dental floss (Cocofloss, silk floss) is available without PFAS.

Chemical & Health Analysis

Each chemical of concern is broken down below — what it is, where it comes from in this product, what it does to the body, and who is most at risk.

Contains:PTFE-coated floss

PFAS

Source

PTFE coating on Oral-B Glide dental floss

Health Risk

Higher PFAS blood levels in women who use Glide floss

Who Is Most At RiskAdults using PTFE-coated dental floss daily

Peer-Reviewed Sources

All health claims are based on published, peer-reviewed research from the NIH, WHO, IARC, and peer-reviewed journals. This information is for educational purposes and does not constitute medical advice.