Aunt Flow Regular Absorbency Cotton Tampons
Lower PFAS concern; cotton tampons inherently unlikely to contain PFAS.
Aunt Flow Regular uses cotton and rayon core materials without reported water-repellent coating or stain-resistant treatments. No PFAS claims made, but cotton-based tampons carry minimal PFAS risk versus synthetic alternatives.
We flunk more products than we pass. This one earned its grade. How we grade
Material
cotton, rayon, cardboard applicator
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Category baseline
period care is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Rayon fiber shedding and microplastic aspiration
Rayon is not a plastic, but loose fibers can shed during insertion or removal. This is a mechanical rather than chemical hazard; risk is generally low with correct insertion and no excessive friction.
What’s reassuring
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Dioxins and furans from bleaching
Aunt Flow markets unbleached or oxygen-bleached cotton; no regulatory violations or detected residues are on record. Modern US and EU tampon manufacturing standards tightly limit dioxin/furan presence regardless of brand.
Fragrance or fragrance allergens
Aunt Flow Regular is unscented; no synthetic fragrance chemicals or known allergen contact sensitizers are added. Scented variants do exist but are not part of this product specification.
Talc or asbestos contamination
No talc is used in tampon manufacture or applicators. Historically, talc in feminine care products raised ovarian cancer concerns; Aunt Flow does not employ this ingredient.
Phthalates
Cardboard applicators do not contain PVC, polyethylene, or other plastic matrices that leach phthalates. Plastic applicators (common in mass-market brands) pose higher exposure risk, but Aunt Flow's cardboard design avoids this pathway entirely.
Source: ATSDR ↗The full breakdown
What it's made of and why it matters
Aunt Flow Regular tampons use organic cotton blended with rayon (viscose), a material pair standard across most tampon brands. The cardboard applicator is a mechanical alternative to plastic, reducing microplastic concerns during insertion and disposal. Rayon is cellulose-derived and highly absorbent; cotton provides structural integrity. No bleaching agents or synthetic polymers are embedded in the core itself, which simplifies the chemical hazard footprint compared to fully synthetic or heavily chlorine-bleached alternatives.
The brand's record and disclosure
Aunt Flow publishes ingredient transparency and does not use chlorine bleaching, aligning with harm-reduction marketing common in the direct-to-consumer period care sector. The brand maintains GOTS (Global Organic Textile Standard) certification for its cotton sourcing. No product recalls, contamination incidents, or regulatory warnings are on public record. PFAS disclosure is not prominently stated, though cotton-rayon blends are inherently unlikely vectors for intentional PFAS addition.
How it compares in its category
Aunt Flow positions in the premium organic/sustainable segment alongside brands like Cora and Seventh Generation, with higher price than mass-market Tampax or Kotex. Cardboard applicators avoid plasticizer leaching concerns associated with plastic applicators (notably di(2-ethylhexyl) phthalate, or DEHP). The unbleached or minimally bleached cotton approach reduces dioxin and furan residues that historically occurred in chlorine-heavy manufacturing, though modern regulations have tightened this issue across the industry.
If you buy it
Store in a cool, dry place to prevent moisture degradation of the cardboard applicator. Use within 5 years of purchase; rayon fibers degrade slowly if exposed to humidity or direct sunlight. Change tampons every 4-8 hours to reduce toxic shock syndrome (TSS) risk, independent of material. Dispose of applicators in trash, not toilet, to avoid cardboard swelling in plumbing; some municipal systems accept compostable options if clearly marked.
What we don’t know
- Basis
- Model estimate, 82% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Aunt Flow has made none
Formulations change between production runs, so check the current label. How we grade.
Safer alternatives in Tampons
Lola
Organic Tampons
organic cotton, cardboard applicator
Cardboard degradation or splinters
Limited concern
Allergic contact dermatitis from cotton or additives
Limited concern
Lower concern. Organic cotton base with third-party certifications support claim.
✓Verified PFAS-free by a third party
Lola
Non-Toxic Applicator Free Tampons
organic cotton, cardboard applicator
Lower concern. Third-party verified PFAS-free organic cotton tampons.
✓Lab test found no PFAS
Seventh Generation
Tampons
organic cotton, cardboard applicator
Bacterial or fungal contamination
Limited concern
Lower PFAS concern; organic cotton base with PFAS-free claim.
✓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.