Do Aunt Flow tampons have PFAS?
Aunt Flow tampons average 95 out of 100 on PFAS Authority's PFAS and toxin screen across the 4 Aunt Flow tampons graded as of October 2026, above the 70 out of 100 median for the 17 other tampons brands graded alongside it.
Aunt Flow tampons average Excellent on our four-band scale. 4 of the 4 we graded are worth buying.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
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Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
Aunt Flow tampons worth buying Good or better, best-graded first
- cotton, rayon, cardboard applicator
- The brand calls it PFAS-free, which we have not verified
- Cardboard applicator degradation and splinter risk. Cardboard can soften or fragment if exposed to moisture…
- cardboard tube applicator, plastic handle
- The brand calls it PFAS-free, which we have not verified
- Contamination from unsterilized or improperly manufactured plastic handle. While no recalls exist, plastic…
- cotton, rayon, or viscose (typical tampon fibers)
- The brand calls it PFAS-free, which we have not verified
- Formaldehyde / VOCs. Cotton and rayon production may involve formaldehyde-based resins for wrinkle resistance…
2 hazards checked on this product, all on its full breakdown.
- Rayon/viscose, cotton, non-woven fibers
- The brand calls it PFAS-free, which we have not verified
- Pesticide residue. Non-organic cotton used in tampons may carry trace pesticide residues from cultivation.…
3 hazards checked on this product, all on its full breakdown.
Better tampons from other brands
Graded higher than the Aunt Flow average of 95.
- 100% organic cotton
- A third party reports verifying it as PFAS-free
- Heavy metals
Natracare
Organic Super Plus Tampons, 3 x 20 ct
- organic cotton, cardboard applicator
- The brand calls it PFAS-free, which we have not verified
- Dioxins from bleaching
Natracare
Organic Cotton Super Plus Tampons
- organic cotton, no added fluorochemicals
- The brand calls it PFAS-free, which we have not verified
- Verified PFAS-free by a third party
The same question, asked of the other tampons brands
Best average grade first. Aunt Flow averages 95.
See every Aunt Flow product we grade on the Aunt Flow brand page, or the full tampons ranking.