Aunt Flow · Period Pads
Aunt Flow Organic Cotton Cartride Pads
Lower concern, organic cotton pads have no typical PFAS trigger, but brand makes no explicit PFAS commitment.
Aunt Flow's organic cotton cartridge pads use a primary material (cotton) with no documented PFAS application pathway in period-care products. The brand does not disclose PFAS testing or claim PFAS-free status. No public lab data or recalls exist; organic cotton itself poses lower PFAS risk than synthetic or water-resistant treatments.
Shop Aunt Flow on Amazon →Material
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 Organic Cotton Cartridge Pads are constructed primarily from certified organic cotton, which is grown without synthetic pesticides or fertilizers. Organic cotton eliminates the residue risk from conventional cotton farming (which accounts for roughly 16% of global insecticide use on only 2.5% of arable land). The absence of bleach, dyes, and adhesive binders in the cartridge core means fewer chemical processing steps than conventional period pads, reducing leachable synthetics that contact the skin during wear.
The brand's record and disclosure
Aunt Flow has not published detailed safety testing reports, third-party certifications (such as standard 100 by OEKO-TEX), or explicit commitments to PFAS avoidance. The brand markets itself as organic and eco-conscious but does not disclose absorbency agent chemistry, adhesive composition, or testing for pesticide residues or dioxins, common concerns even in organic textiles if processing uses certain bleaching methods. No product recalls or safety controversies are on record for this brand.
How it compares in its category
Conventional period pads typically contain rayon (cellulose from wood pulp), super-absorbent polymers (SAP), and synthetic adhesives; many are also bleached with chlorine, which can generate dioxin byproducts. Aunt Flow's organic cotton cartridge avoids rayon and SAP, positioning it as lower-chemical than mainstream brands like Tampax or Always. However, it lacks the third-party safety certifications (OEKO-TEX, GOTS) that some organic competitors, such as Cora or Rael, voluntarily pursue, limiting independent verification of chemical safety.
If you buy it
Store pads in a cool, dry location away from direct sunlight to prevent any degradation of the organic cotton fibers. Change pads regularly (every 4-8 hours depending on flow) to minimize prolonged skin contact and reduce infection risk. If you experience irritation, itching, or allergic reaction, discontinue use and consider a patch test on clean skin to rule out cotton sensitivity (rare but possible). No special disposal precautions are needed beyond standard household waste, as the pads are biodegradable.
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 and processing chemicals
Although marketed as organic cotton, Aunt Flow does not publicly disclose testing for residual pesticides, heavy metals, or by-products of textile processing (e.g., dioxins from bleaching). Organic certification of raw materials does not guarantee the final product has been tested for contaminants introduced during manufacturing.
Adhesives and absorbency agents composition
The brand does not detail the adhesive used to attach the cartridge or any absorbency-enhancing agents within the pad itself. Without disclosure, the chemical identity and safety profile of these components remain unclear, though organic marketing suggests conventional super-absorbent polymers may be avoided.
Allergic contact dermatitis from cotton or processing residues
Direct contact with cotton on sensitive vulvar skin can occasionally trigger irritation or allergic response, particularly if processing residues (dyes, finishes, or soap) remain. Organic certification does not guarantee residue-free processing or elimination of contact allergens.
Lack of third-party safety certification
The product carries no visible OEKO-TEX, GOTS, or equivalent independent certification, which other organic pad brands obtain to verify absence of harmful substances. This is not a defect but reflects lower transparency compared to certified alternatives.
Dioxin from bleaching (if chlorine-based)
No public record indicates whether Aunt Flow uses chlorine bleach or oxygen-based bleach in processing organic cotton. If chlorine is used, trace dioxin formation is theoretically possible, though quantities in finished pads would be expected to be negligible if any standards are followed.
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 Period Pads
Organyc
Corman Organyc Certified Organic Cotton Feminine Pads
Certified organic cotton, no synthetic coatings disclosed
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
Feminine Pads
Organic cotton, cellulose
Lower-concern choice; organic cotton base + explicit PFAS-free positioning + third-party certs.
✓Verified PFAS-free by a third party
Organyc
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.