Aunt Flow Flow Fave Organic Cotton Tampons
Lower concern; organic cotton tampons unlikely to contain PFAS.
Aunt Flow's organic cotton tampons are made from a naturally lower-concern material. No PFAS disclosures found, but organic cotton itself poses minimal PFAS risk.
We flunk more products than we pass. This one earned its grade. How we grade
Material
organic cotton
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Aunt Flow Flow Fave Organic Cotton Tampons is made of, ingredients and materials
Aunt Flow Flow Fave tampons are constructed from certified organic cotton, which means the fiber was grown without synthetic pesticides, herbicides, or genetically modified seeds. Organic cotton eliminates the pesticide residue risk present in conventional cotton tampons, though both types are bleached during processing. The absence of synthetic chemical inputs in cultivation reduces but does not eliminate chemical processing steps in the final product; bleaching agents and any finishing treatments applied post-harvest remain the primary chemical exposure route for the wearer.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Dioxin and bleaching residues
All cotton tampons are bleached during manufacturing; chlorine-based bleaching produces measurable dioxin residues, but hydrogen peroxide or oxygen-based bleaching reduces this risk. Aunt Flow does not publicly specify its bleaching method, so the presence and level of dioxin residues cannot be confirmed without independent testing or third-party certification.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Formaldehyde / VOCs
No formaldehyde-based resins or antimicrobial finishes are documented in Aunt Flow tampons or typical organic cotton tampon production. Organic cotton itself does not require or benefit from formaldehyde applications, making this hazard unlikely in this product.
Source, ATSDR ↗Azo dyes or synthetic colorants
Tampons are typically uncolored or naturally bleached white; synthetic azo dyes are not standard in this product category. If Aunt Flow uses any dye or pigment, it is not noted in public materials, suggesting natural coloration or none.
Fragrance allergens or undisclosed chemical irritants
Aunt Flow does not advertise fragrance, menthol, or active chemical additives in this product line. Unscented tampons carry lower risk of fragrance-related vulvovaginal irritation, though individual sensitivity to cotton or residual processing chemicals remains possible.
How is this PFAS grade calculated?
The brand's record and disclosure
Aunt Flow markets itself as an organic and plastic-free brand but does not publicly disclose detailed safety certifications, testing reports, or ingredient statements beyond the organic cotton claim. The brand's silence on PFAS, formaldehyde-releasing resins, or dioxin residues from bleaching leaves verification to third-party certification or regulatory compliance. No recalls, lawsuits, or formal safety complaints are on record for this product. The lack of transparency is notable but typical for smaller period-care brands; certification bodies (if any) would be the primary safety backstop.
How it compares in its category
Organic cotton tampons sit at the lower-risk end of the tampons category because they avoid pesticide residues, dioxins from chlorine bleaching (if hydrogen peroxide or oxygen-based bleaching is used instead), and synthetic fragrance allergens. Conventional cotton tampons and rayon/viscose blends carry higher dioxin and pesticide residue risk; applicator materials and plastic packaging vary widely. Aunt Flow's explicit plastic-free positioning and organic sourcing differentiate it from mass-market brands, though the safety advantage is primarily in avoided inputs rather than demonstrated superior processing.
If you buy it
Tampons are single-use and disposed after a few hours; there is no maintenance or heat-related risk as with cookware or textiles worn repeatedly. Organic cotton tampons carry the same insertion and removal practices as conventional ones; comfort and absorbency are individual and not safety-dependent. Store in a dry location away from heat and moisture to prevent mold growth, though this is low-risk for a sealed product. If you have vulvovaginal sensitivity, patch-test or discontinue if irritation occurs; organic cotton does not guarantee hypoallergenic properties.
What is not known about PFAS in this product?
- Basis
- Model estimate, 75% 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.
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