Aunt Flow · Period Pads
Aunt Flow 100% Organic Cotton Day Pads with Wings ATF00125
Lower concern, organic cotton pads have minimal PFAS risk, but brand offers no transparency.
Aunt Flow's day pads are made from 100% organic cotton with no synthetic coatings or water-resistant treatments mentioned, which significantly reduces PFAS exposure routes common in period care. The brand makes no PFAS claim or disclosure either way.
Shop Aunt Flow on Amazon →Material
100% organic cotton
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 pads are marketed as 100% organic cotton, which eliminates synthetic fiber contamination and pesticide residues common in conventional cotton. The organic certification (if verified through third-party bodies like GOTS) means the cotton was grown without synthetic pesticides, herbicides, or GMO seeds, reducing systemic chemical exposure at the fiber level. Organic cotton does not inherently prevent all processing chemicals (bleach, dyes, adhesives), but the supply chain oversight is typically stricter than conventional cotton pads.
The brand's record and disclosure
Aunt Flow has built a brand around organic and natural positioning but publishes minimal third-party testing or ingredient transparency on their website. The company does not publicly disclose certification bodies (GOTS, OEKO-TEX, etc.) for their organic claims, which weakens verifiability. No major recalls or regulatory actions against this product are documented in public records. Brand silence on PFAS and processing chemicals is common among indie menstrual-product makers and reflects industry-wide disclosure gaps rather than flagged misconduct.
How it compares in its category
Aunt Flow competes in the premium organic pad segment alongside brands like Cora, Rael, and Sustain; most claim organic cotton but few provide full supply chain transparency. Mainstream brands (Kotex, Always) typically use conventional cotton blends and synthetic materials, introducing higher pesticide and microplastic risk. Aunt Flow's organic-only positioning reduces some hazard classes versus mass-market alternatives but does not eliminate processing-stage exposures that are standard across the category.
If you buy it
Store pads in a cool, dry place away from humidity to prevent microbial growth (fungal or bacterial); menstrual products are not sterile and moisture accelerates colonization. Replace pads every 4-8 hours depending on flow to minimize bacterial overgrowth risk and TSS (toxic shock syndrome) potential, which is a rare but serious concern across all absorbent products. If you experience skin irritation, rash, or unusual odor, discontinue use and consider a patch test with another brand to isolate the trigger. Do not heat or microwave pads; this is not a typical use case but worth noting for safety baseline.
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 in cotton fiber
Organic certification excludes synthetic pesticides at the agricultural stage, but no public testing data for Aunt Flow verifies residue absence. Conventional cotton pads carry higher documented pesticide load; organic reduces but does not eliminate exposure if cross-contamination or non-certified inputs occur in processing.
Bleach and dyes in absorbent core and cotton layers
Menstrual pads undergo bleaching and chemical processing to achieve absorbency and whiteness. Aunt Flow does not publicly disclose bleaching method (elemental chlorine, ECF, or TCF) or dye safety, leaving residual chemical content unverified. Skin contact risk is moderate; absorbed compounds are minimal but individual sensitivity varies.
Adhesive off-gassing and skin contact
The adhesive used to attach the pad to underwear and seal wing edges is not specified in public materials. Most commercial menstrual pad adhesives are acrylate or rubber-based and may emit low levels of volatile organic compounds (VOCs) or contact allergens. No brand-specific testing is published; risk is common across the category.
Microbial colonization from moisture retention
Absorbent pads create a warm, moist microenvironment that supports bacterial and fungal growth over time. Cotton alone does not prevent this; user hygiene (replacement frequency) and storage conditions matter more than material choice. TSS risk from any period pad is rare but documented; organic material confers no protective advantage.
Formaldehyde resin finishes
Some cotton textile manufacturers use formaldehyde-releasing resins for wrinkle resistance or softness. Aunt Flow does not disclose finishing treatments; organic cotton does not exclude resin finishing. No recall or testing data suggests this product contains problematic levels, but transparency is absent.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 75% 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 Period Pads
Organyc
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Lower-concern choice; organic cotton without disclosed coatings reduces PFAS risk, though brand offers no explicit assurance.
✓Verified PFAS-free by a third party
Organyc
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Lower-concern choice; organic cotton base + explicit PFAS-free positioning + third-party certs.
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The Honey Pot Company Organic Herbal Regular Pads
organic cotton, cellulose core
Lower-concern period product; organic cotton pads unlikely to contain PFAS, though brand remains silent on testing.
✓Verified PFAS-free by a third party
More period pads 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.