Kotex Natural · Tampons
2 Boxes Vtg Kotex Natural Curved Tampons (u Security By Kotex) 18ct
Lower PFAS concern; no waterproof coating typical in tampons, but brand makes no disclosure.
Kotex Natural tampons are primarily viscose rayon and cotton, materials with lower inherent PFAS risk. Traditional tampons do not require water-repellent or non-stick coatings that typically introduce PFAS.
Shop Kotex Natural on Amazon →Material
Viscose rayon, cotton absorbent core
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
period care 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
Kotex Natural Curved Tampons use viscose rayon (a cellulose fiber made from wood pulp) as the primary absorbent material, with a cotton absorbent core. Viscose rayon undergoes chemical processing but is not synthetic plastic, so it does not off-gas volatile organic compounds or leach persistent additives into the body the way some synthetic polymers do. The curved design and lack of plastic applicator reduce surface-contact hazards. Cotton core adds absorbency without requiring chemical binders or flame retardants typical in some competing products.
The brand's record and disclosure
Kotex (owned by Kimberly-Clark) does not publicly disclose detailed chemical composition, manufacturing processes, or independent certification for tampons. The brand has not faced major recalls or safety controversies in available public records, but also has not pursued third-party certifications (e.g., organic, chlorine-free) that would signal transparency. Kotex Natural line markets itself as a simpler formula than conventional options, but this claim lacks third-party backing. No public stance on PFAS use in water-repellent coatings or packaging has been documented.
How it compares in its category
Viscose-rayon and cotton tampons are the mainstream standard across most major brands (Tampax, Playtex, Kotex). Kotex Natural positions itself as a middle option between fully organic-certified brands (e.g., Cora, Lola) and conventional products with added additives. It lacks third-party certification that might reduce uncertainty about bleaching agents or synthetic fragrances, but materials themselves are not inherently riskier than competitors. Pricing and accessibility are competitive, making it a reasonable choice for consumers prioritizing affordability without extreme concern about certification.
If you buy it
Tampons are designed for short-term internal use and carry minimal risk from material exposure under normal conditions. Change tampons every 4-8 hours to reduce bacterial growth and reduce risk of toxic shock syndrome (TSS), regardless of brand or material. Do not use tampons while sleeping for extended periods. If you experience unusual itching, discharge, or odor, discontinue and consult a healthcare provider. Store in a dry location away from direct heat or moisture; no special handling is needed beyond standard hygiene.
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.”
Residual bleaching agents and chlorine compounds
Viscose rayon and cotton are typically bleached during manufacturing; Kotex does not disclose whether elemental chlorine or chlorine dioxide is used. Trace residues are unlikely to pose acute risk during short-term internal use, but non-chlorine-free processing is a transparency gap.
Synthetic fragrance allergens
Kotex Natural line includes scented and unscented options; scented formulas may contain undisclosed fragrance compounds that can trigger contact dermatitis or urogenital irritation in sensitive users. No ingredient list for fragrance components is publicly available.
Dioxin and furan contamination (bleaching byproduct)
Dioxins are a theoretical concern with chlorine-bleached rayon, but modern manufacturing controls and regulatory limits in the U.S. and EU make measurable contamination unlikely. No recalls or documented dioxin issues have been reported for Kotex or similar brands.
Pesticide residues in cotton core
Kotex does not certify cotton as organic, meaning residual pesticide residues from cultivation are possible. Systemic pesticide exposure from tampon use is not established as a significant health route, and no safety alerts exist for this product category.
Microfiber shedding or product degradation
Viscose rayon and cotton do not shed microplastics, and degradation within the body during typical use (4-8 hours) is not a known risk. No reports of fiber loss or structural failure in Kotex tampons have surfaced.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% 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.
Safer alternatives in Tampons
Seventh Generation
Organic Cotton Tampons Applicator
organic cotton (tampon & applicator core); cardboard applicator
Lower-concern buy, organic cotton & MADE SAFE cert reduce PFAS risk, though brand is silent on the topic.
✓Verified PFAS-free by a third party
Lola
Organic Cotton Tampons
organic cotton (no synthetic coatings)
Lower concern, uncoated organic cotton with transparent PFAS-free positioning and third-party certification.
✓Verified PFAS-free by a third party
Cora
Organic Tampons with Applicator
organic cotton tampon with cardboard/plastic applicator
Lower-concern choice; organic base material and MADE SAFE cert suggest thoughtful sourcing, but no explicit PFAS commitment.
✓Verified PFAS-free by a third party
More tampons 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.