Perioe · Dental Floss
DrTung's Double-Sided Perio Sticks
Lower concern; wooden periodontal sticks carry minimal PFAS risk but brand offers no transparency.
DrTung's Perio Sticks are wooden oral care tools with no obvious coating or water-repellent treatment typical of PFAS-risk products. The brand does not disclose PFAS status, but the simple wood material and intended use (interdental cleaning) suggest lower exposure risk compared to nonstick, waterproof, or stain-resistant consumer goods.
Shop Perioe on Amazon →Material
wood (bamboo or sustainably harvested hardwood)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
cosmetics is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
DrTung's Perio Sticks are wooden picks made from bamboo or sustainably harvested hardwood, materials that carry no known leaching risk of heavy metals, plasticizers, or synthetic coatings typical of plastic alternatives. Wood does not require Teflon-type coating, BPA, or phthalate additives to function as a periodontal cleaning tool. The double-sided design suggests one end is tapered and one blunt, both shapes are achieved through simple mechanical shaping without chemical processing that would introduce hazards.
The brand's record and disclosure
Dr. Tung's (branded under Perioe) has an established presence in natural oral care but provides no published safety certifications, material sourcing transparency, or chemical processing disclosures for these sticks. No recalls or safety incidents are on record for this product. The brand does not publicly address pesticide residues on bamboo, wood treatments (e.g., sterilization methods), or adhesives used in construction, leaving sourcing verification to assumption rather than verification.
How it compares in its category
Wooden periodontal sticks are the lowest-chemical-hazard option in the floss and interdental cleaning category; plastic-based alternatives (nylon floss, plastic picks) carry microplastic shedding and BPA risks that wood does not. Compared to metal picks, wooden sticks offer no metal leaching risk but slightly lower durability. They are functionally equivalent to other bamboo or wood picks on the market, with no established safety advantage over competitors like Radius or Humble Brush wood picks.
If you buy it
Use as directed for interdental cleaning; wooden sticks do not require special heat precautions or maintenance beyond dry storage to prevent mold. Replace when splintering or fraying occurs, typically after several weeks of use depending on pressure applied. Store in a dry container to avoid moisture accumulation and fungal growth. No special disposal precautions needed; wood is compostable.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Wood treatment chemicals (pesticides, fungicides)
Bamboo and hardwood may carry pesticide residues depending on cultivation and processing; DrTung's provides no disclosure of organic certification or treatment methods. Risk is low if sourced from regulated agricultural systems but unverified for this brand.
Adhesive or binding agents in construction
Double-sided construction suggests two pieces may be bonded; no information available on adhesive type. Food-contact wood adhesives (typically hot-melt or PVA-based) would pose minimal risk, but brand does not specify.
Mold and bacterial growth during storage
Wood is hygroscopic and can harbor mold if stored in humid conditions. This is a use-case hazard, not a manufacturing hazard, but relevant to safety in household use.
Splinter risk and oral trauma
Wooden picks can splinter if degraded or misused, posing minor laceration risk to gums. This is inherent to the material class and not specific to DrTung's but worth noting for users with sensitive gums.
Colorants or stains on wood surface
No evidence of synthetic dyes or heavy-metal-based stains on this product. Natural wood color is typical, but brand does not confirm whether any finish is applied.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 78% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
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Lower-concern product with explicit PFAS-free claim; no third-party verification limits certainty.
⚠Risky category by default
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.