Aunt Flow · Tampons
Aunt Flow Tampon Applicator
Lower-concern choice; cardboard applicator is unlikely PFAS vector, but brand transparency is absent.
Aunt Flow's tampon applicator is cardboard-based, a material not typically associated with PFAS manufacturing or coatings. The brand makes no public PFAS claims or disclosures. No third-party lab data or certifications are publicly available, so confidence relies on material inherency rather than brand assurance.
Shop Aunt Flow on Amazon →Material
cardboard applicator tube
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 tampons use a cardboard tube applicator instead of plastic (polyethylene or polypropylene). Cardboard is primarily cellulose and carries no documented risk of endocrine-disrupting chemicals like BPA or phthalates that can leach from plastic applicators. The tampon itself is typically cotton or a cotton-rayon blend; no public reports indicate unusual chemical loading in the absorbent core. Cardboard can be treated with adhesives or coatings, but these are not typically migration hazards in the vaginal environment.
The brand's record and disclosure
Aunt Flow has not published detailed material safety certifications or third-party testing results publicly available. The brand markets itself as female-founded and eco-conscious, emphasizing the cardboard applicator and recyclability, but does not disclose supplier audits, heavy metal testing, or bleaching agents used in manufacturing. No product recalls or safety complaints are on record. The silence on PFAS stance and detailed chemical composition is typical of the menstrual product industry but limits independent verification.
How it compares in its category
Cardboard applicators (Aunt Flow, Cora, Seventh Generation) are mechanically and chemically lower-risk than plastic applicators because they eliminate leaching vectors for endocrine disruptors. However, most major brands (Tampax, Kotex, OB) do not disclose full material sourcing or heavy metal limits in the absorbent core. Aunt Flow's transparency is below that of certified organic brands (Seventh Generation, Cora) which publish third-party audit summaries. No tampon brand routinely discloses formaldehyde-releasing treatments, though modern manufacturing has largely phased them out.
If you buy it
Standard tampon safety applies: change every 4-8 hours to reduce toxic shock syndrome risk, do not use applicator for any other purpose. The cardboard applicator is biodegradable but should not be flushed; dispose in trash. Store in a cool, dry place away from excessive moisture to prevent mold on the cardboard tube. If you experience irritation, unusual odor, or allergic symptoms, discontinue use and consult a healthcare provider; consider testing for fragrance sensitivity if the product contains added scent.
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.”
Bleaching agents and dioxins in absorbent core
Most modern tampons are elemental chlorine-free (ECF) or totally chlorine-free (TCF) bleached. No public testing of Aunt Flow tampons for dioxin residues is available. Industry-wide shift away from chlorine bleaching has made this hazard rare, but brand-specific testing is not disclosed.
Heavy metals (lead, cadmium, arsenic) in cotton or core
Cotton is a known bioaccumulator of soil-derived heavy metals, but absorption into the vaginal mucosa from a tampon is considered minimal. Aunt Flow does not publish heavy metal limits for raw cotton inputs. No regulatory standard or recall history exists for this hazard in the tampon category.
Fragrance allergens and undisclosed sensitizers
If Aunt Flow tampons contain added fragrance, common allergens include limonene, linalool, and geraniol. The brand does not clearly disclose fragrance ingredient lists, which is standard industry practice. Unscented or fragrance-free variants are the safer choice for sensitive users.
Cardboard tube adhesives and coating migration
Food-grade adhesives used in tampon applicators are not known to leach into vaginal tissue. However, Aunt Flow does not specify adhesive or coating composition. Direct contact with vaginal mucosa is brief, limiting exposure window.
Rayon processing residues (viscose production byproducts)
If the absorbent core includes rayon, viscose manufacturing can leave trace sodium hydroxide or sulfuric acid. Modern closed-loop processes have reduced this risk significantly. Aunt Flow does not publicly disclose rayon sourcing or processing standards.
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.