Kotex Natural · Tampons
Kotex Natural Tampon Regular 16
Lower concern, simple textile product with no known PFAS-prone treatments, but brand provides no PFAS transparency.
Kotex Natural tampons are primarily rayon and cotton with no disclosed water-resistant or stain-resistant coatings typical of PFAS use. The brand does not explicitly discuss PFAS, which is typical for period-care products but leaves room for uncertainty.
Shop Kotex Natural on Amazon →Material
Rayon/viscose core, cotton cover, no Teflon-family coating disclosed
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 Regular uses a rayon/viscose core with a cotton cover. Rayon is produced via chemical pulping (typically the viscose process), which involves sodium hydroxide and carbon disulfide; residual solvent and alkali are rinsed out in standard manufacturing but trace amounts may persist. Cotton cover reduces synthetic polymer exposure. No Teflon-family coating water-repellent coatings are disclosed on this product, which is typical for natural-positioned tampons.
The brand's record and disclosure
Kotex Natural markets itself as a natural alternative but provides limited public transparency about bleaching agents, rayon processing methods, or pesticide use in cotton sourcing. The brand has not faced major safety recalls or regulatory actions specific to this product line. Kotex does not publish PFAS testing data or supply-chain certifications (e.g., organic cotton, chlorine-free bleach), making independent verification difficult.
How it compares in its category
Rayon/cotton blends are commonplace in mainstream tampon lines; Kotex Natural sits in the middle of the market. Competitors with stronger disclosure (e.g., Seventh Generation, Natracare) publish bleach and rayon sourcing details and third-party certifications. Conventional tampons (Tampax, O.B.) use similar rayon cores but may apply additional synthetic treatments. Organic cotton alternatives command a premium but offer pesticide reduction.
If you buy it
Use as directed; tampons are single-use and discarded, minimizing exposure window. Store in a cool, dry place to prevent microbial growth in the package. Change every 4-8 hours per product instructions to reduce toxic shock syndrome risk (standard practice, not brand-specific). If you have sensitive skin or a history of irritation, consider requesting material certifications from the manufacturer or testing a small quantity first.
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 solvents from viscose rayon processing
Viscose rayon production uses sodium hydroxide and carbon disulfide; modern mills remove these to regulatory limits, but Kotex has not published residual solvent data for this product. No recalls or adverse reports are on file.
Bleaching byproducts (dioxins/chlorinated compounds)
Tampons are typically bleached with chlorine or hydrogen peroxide to achieve whiteness. Kotex Natural does not disclose bleach type or whether chlorine-free methods are used. Trace dioxins from chlorine bleaching are a theoretical concern in prolonged internal contact, but FDA-regulated tampon materials meet safety standards.
Pesticide residues in cotton cover
The cotton outer layer may carry residual pesticides if not organically grown; Kotex Natural does not specify organic or pesticide-tested cotton. Residue levels in finished textiles are typically minimal but unverified for this product.
Fragrance or additive allergens
Kotex Natural is marketed as unscented and fragrance-free, reducing contact allergen risk. No essential oils, dyes, or antimicrobials are disclosed on packaging, lowering irritation potential versus scented competitors.
Toxic Shock Syndrome (TSS) risk
TSS is a rare systemic risk linked to prolonged tampon use, not material composition. Kotex includes standard TSS warnings; risk is behavioral (replacement frequency) rather than product-specific. Rayon and cotton do not elevate TSS risk relative to other tampons.
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.