Aunt Flow · Tampons
Aunt Flow Tampon Cartridge Applicator
Lower concern for PFAS, applicator is untreated cardboard, but no public disclosure from brand.
Aunt Flow's tampon applicators are cardboard-based without evident water-repellent or nonstick coatings that typically trigger PFAS use. The brand does not publicly disclose PFAS testing or claims.
Shop Aunt Flow on Amazon →Material
cardboard applicator tube, organic cotton absorbent
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 a cardboard tube applicator paired with organic cotton absorbent material. Cardboard applicators eliminate Teflon-type coating (Teflon) fume risk and reduce plastic microplastic concerns entirely. Organic cotton certification typically means avoidance of synthetic pesticide residues on the fiber itself, though the manufacturing process still involves water and processing chemicals that are not publicly detailed by the brand.
The brand's record and disclosure
Aunt Flow markets itself as a sustainable, organic-focused brand but provides minimal third-party certification detail on its website. The brand does not publicly disclose testing for chlorine bleaching, heavy metals, or microbial contamination. No major safety recalls or regulatory actions are on record for this product. The lack of proactive disclosure around manufacturing practices is a gap, though absence of reported incidents does not indicate absence of hazard.
How it compares in its category
Cardboard applicators are inherently safer than plastic applicators from a materials perspective, avoiding BPA and phthalate concerns present in some cheaper plastic designs. Organic cotton positioning aligns with category leaders like Seventh Generation and THINX, though those brands often publish more detailed supply-chain transparency. Most conventional tampon brands (Tampax, Kotex) use bleached cotton and plastic applicators, making Aunt Flow a lower-chemical-exposure option by comparison.
If you buy it
Cardboard applicators are fragile when wet; store in a dry location and avoid exposing the product to moisture before use. Organic cotton tampons may have slightly different absorbency profiles than conventional bleached versions; monitor for leakage during your first cycle and size up if needed. Applicator disposal should follow local guidelines (compostable but not all municipal compost accepts them). No heat exposure or special care is required for storage.
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.”
Chlorine bleach residues (dioxins, furans)
Aunt Flow claims organic cotton but does not publicly disclose whether the finished product is chlorine-free bleached or unbleached. Most organic cotton tampons still undergo some bleaching; no test results are published by the brand to confirm dioxin/furan levels.
Pesticide residues in cotton fiber
Although organic cotton reduces synthetic pesticide use, brand does not provide third-party certification (e.g., GOTS) details publicly. Residue testing is not disclosed, making independent verification of contamination risk unavailable.
Microbial contamination (bacteria, mold)
No public record of contamination recalls for Aunt Flow tampons. Cardboard packaging is less barrier-proof than plastic; storage in humid environments could theoretically increase risk, but no reported incidents exist.
Heavy metals in absorbent material
Cotton-based absorbents are not typically screened for lead or cadmium accumulation. No testing or recall data exists for this brand; risk is considered low relative to inorganic fillers, but transparency is absent.
Cardboard applicator degradation and splinters
Cardboard tubes weaken when damp and may fragment during insertion or removal, creating minor physical injury risk. This is a mechanical rather than chemical hazard but more likely with cardboard than plastic in high-moisture conditions.
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.