Aunt Flow · Tampons
Aunt Flow Organic Cotton Tampon Cardboard Applicator Regular
Lower-concern pick, organic cotton + cardboard are inherently PFAS-unlikely, but brand offers no explicit commitment.
Aunt Flow's tampon uses organic cotton and a cardboard applicator, neither of which are typical PFAS vectors. Period products rarely require water repellency, nonstick, or grease-resistant coatings that drive PFAS use.
Shop Aunt Flow on Amazon →Material
Organic cotton, cardboard applicator
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Category baseline
period care is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
Aunt Flow uses certified organic cotton for the absorbent core, which means it was grown without synthetic pesticides, herbicides, or fertilizers, reducing residue risk compared to conventional cotton tampons. The cardboard applicator is a key safety advantage: it avoids the plasticizer and synthetic polymer concerns that surround plastic applicators. Cardboard is inert, biodegradable, and carries no known leaching hazards under normal use conditions. The combination of these two materials sidesteps most hazard classes relevant to period products.
The brand's record and disclosure
Aunt Flow has built its brand identity on transparency: the company publicly discloses its materials, does not use chlorine bleach in processing (opting for chlorine-free bleaching), and has no known safety recalls or toxicity complaints in public databases. The brand does not make explicit PFAS commitments in publicly available statements, though the material choices themselves (organic cotton and cardboard) are inherently low-risk for PFAS accumulation. No controversies regarding contamination, heavy metals, or restricted substances have been established for this product line.
How it compares in its category
Most conventional tampons use non-organic cotton (which may carry pesticide residues) and plastic applicators (which introduce plasticizer exposure risk). Some premium brands now offer organic cotton with plastic applicators, which reduces pesticide but not plasticizer concerns. Aunt Flow's cardboard applicator is less common than plastic but becoming more standard among eco-conscious and health-focused brands. The organic + cardboard pairing places this product in the lower-hazard tier of the tampon category, comparable to other cardboard-applicator organic options like Cora or Seventh Generation.
If you buy it
Cardboard applicators are safe to use and dispose of; they pose no heating or chemical leaching risk during insertion or wear. Store in a cool, dry place to prevent moisture damage to the cardboard, which could affect ease of use but does not create a safety issue. Replace the product if the cardboard becomes visibly damaged or moldy (rare under normal storage). No special precautions are needed beyond standard tampon hygiene: change every 4-8 hours to reduce toxic shock syndrome risk, regardless of material choice.
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.”
Pesticide residues (non-organic cotton reference)
Organic certification eliminates this pathway; no residue testing has been reported as problematic for Aunt Flow's product, and organic cotton standards are well-established and third-party audited.
Chlorine bleach (dioxin) exposure
Aunt Flow explicitly uses chlorine-free bleaching, which removes the dioxin formation risk present in conventionally bleached tampons; this is a documented manufacturing choice, not a residual hazard.
Plasticizer leaching (phthalates, BPA analogs)
Cardboard applicator eliminates the plastic component that would otherwise introduce this hazard; no leaching pathway exists with inert cardboard under body-temperature conditions.
Fragrance allergens and irritants
Aunt Flow tampons are not advertised as scented or fragranced; unscented products carry minimal fragrance allergen risk. No sensitization complaints are on record for this brand.
Rayon processing byproducts (if blended)
Product is described as organic cotton; rayon is not listed as a constituent. If 100% organic cotton is accurate, viscose processing hazards do not apply. Verify packaging label for exact fiber composition.
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.