Aunt Flow · Tampons
Aunt Flow Universal Vended Value Tampon Tubes
Lower concern, conventional tampon with no known PFAS uses in typical construction.
Aunt Flow tampons use standard absorbent cotton/rayon materials and cardboard applicators with no inherent reason to contain PFAS. Period-care products don't typically require the water-resistant or non-stick coatings where PFAS are common.
Shop Aunt Flow on Amazon →Material
cotton/rayon absorbent core, cardboard tube
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
Aunt Flow Universal tampons use a conventional cotton and rayon blend in the absorbent core, with a cardboard applicator tube. This material combination is standard across most tampon brands and has a long established safety history in menstrual product use. Rayon is a regenerated cellulose fiber derived from wood pulp and does not introduce synthetic polymer hazards. The cardboard tube is inert during use and poses no chemical leaching risk to vaginal tissue.
The brand's record and disclosure
Aunt Flow does not publish detailed ingredient certifications or third-party testing results on its website or packaging, which is typical for many mid-market tampon brands. The company markets itself as a value supplier to schools and institutions and does not highlight specific safety claims or organic certifications. No recalls, contamination incidents, or safety complaints linked to Aunt Flow tampons have been documented in public safety databases. The brand's silence on PFAS is consistent with the industry norm; most conventional tampon makers do not use intentional PFAS in absorbent core construction.
How it compares in its category
Aunt Flow's conventional cotton-rayon formula places it in the mainstream of tampon safety, neither premium nor budget-tier. Brands marketed as organic or unbleached (such as Seventh Generation or Veeda) typically offer additional transparency and third-party certification, which some consumers prefer. Aunt Flow's vended-product positioning means cost control takes priority over premium ingredient sourcing or marketing claims. For bulk institutional use, this product meets standard absorbency and comfort expectations without specialty positioning.
If you buy it
No special care or maintenance is required beyond standard tampon use: insert as directed, replace every 4 to 8 hours depending on flow, and do not leave in place longer than 8 hours to reduce toxic shock syndrome risk. Cardboard applicators are not reusable and should be disposed of as regular waste. Store in a cool, dry place to prevent moisture damage to the cardboard tube. If you experience irritation, redness, or unusual odor, discontinue use and consult a healthcare provider.
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.”
Dioxin and bleaching byproducts in rayon production
Rayon manufacturing historically involves chemical processing; whether Aunt Flow's supplier uses elemental chlorine or closed-loop production is not disclosed. Most mainstream tampons contain rayon with residual dioxin levels within FDA acceptable limits, but third-party testing results for this specific product are not publicly available.
Pesticide residues in cotton
No public documentation of pesticide contamination in Aunt Flow tampons or complaints related to pesticide exposure. Conventional cotton may contain pesticide residues, but tampons made from blended cotton-rayon are not identified as a significant source of consumer pesticide exposure.
Synthetic fiber shedding or microfiber migration
Cotton and rayon fibers do not shed microplastics. No established evidence that conventional tampon fibers migrate into vaginal or systemic tissue in quantities that pose health risk.
Toxic Shock Syndrome (TSS) risk from absorbency design
TSS risk is inherent to all high-absorbency tampons if left in place longer than recommended; this is a product-class hazard, not unique to Aunt Flow. Following standard replacement intervals (every 4 to 8 hours, maximum 8 hours) minimizes this risk across all brands.
Fragrance or additive allergens
Aunt Flow Universal tampons are not marketed with added fragrance or scent. No documented allergic reaction reports or additive disclosures suggest this product contains fragrance allergens beyond natural cotton-rayon odor.
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.
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.