Is Aunt Flow PFAS-free?
Across 15 graded products, Aunt Flow averages F (64/100). On disclosure, the brand says nothing publicly about PFAS. 13 of its products grade C or better. Grades are model-based estimates, not lab results.
Worth buying from Aunt Flow C or better, safest first
Aunt Flow
100% Organic Cotton Tampons
100% organic cotton
Lower-concern choice, 100% organic cotton tampons have no typical PFAS application vector.
⚠Risky category by default
Aunt Flow
Universal Vended Value Tampon Tubes
cotton/rayon absorbent core, cardboard tube
Lower concern, conventional tampon with no known PFAS uses in typical construction.
⚠Risky category by default
Aunt Flow
Tampon Applicator
cardboard applicator tube
Lower-concern choice; cardboard applicator is unlikely PFAS vector, but brand transparency is absent.
⚠Risky category by default
Aunt Flow
Period Care
organic cotton, rayon, naturally absorbent fibers
Lower concern, period care made from absorbent plant fibers typically avoids PFAS, but brand provides no transparency.
⚠Risky category by default
Aunt Flow
Tampon Cartridge
rayon/viscose core, cotton cover, minimal processing
Lower PFAS concern than mainstream tampons; no red flags identified, but brand offers no transparency.
⚠Risky category by default
Aunt Flow
Tampon Cartridge Applicator
cardboard applicator tube, organic cotton absorbent
Lower concern for PFAS, applicator is untreated cardboard, but no public disclosure from brand.
⚠Risky category by default
Aunt Flow
Organic Cotton Tampon Cardboard Applicator Regular
Organic cotton, cardboard applicator
Lower-concern pick, organic cotton + cardboard are inherently PFAS-unlikely, but brand offers no explicit commitment.
⚠Risky category by default
Aunt Flow
Flo Organic Tampons
rayon/viscose, organic cotton, cardboard applicator
Lower PFAS concern; typical tampon materials don't require waterproofing or stain treatment, but brand silence on sourcing is a missed transparency opportunity.
⚠Risky category by default
Aunt Flow
Organic Cotton Cartride Pads
organic cotton
Lower concern, organic cotton pads have no typical PFAS trigger, but brand makes no explicit PFAS commitment.
⚠Risky category by default
Aunt Flow
100% Organic Cotton Day Pads with Wings ATF00125
100% organic cotton
Lower concern, organic cotton pads have minimal PFAS risk, but brand offers no transparency.
⚠Risky category by default
Aunt Flow
Organic Cotton Menstrual Pad with Wings
Organic cotton, cellulose absorbent layers
Lower-concern choice; organic cotton pads avoid synthetic polymer coatings, but brand transparency on all layers would boost confidence.
⚠Risky category by default
Aunt Flow
Organic Cotton Menstrual Pads with Wings
organic cotton core; adhesive backing unspecified
Lower PFAS concern for the cotton itself, but adhesive/backing not disclosed, moderate transparency gap.
⚠Risky category by default
Aunt Flow
Vended Pad Boxes
Cellulose-based absorbent core, cotton-blend or synthetic outer layer
Lower PFAS concern for pads themselves; focus on vended dispenser packaging.
⚠Risky category by default
Graded and flagged D and F, we’d swap these
Aunt Flow
Aunt Flo Co 6 Medium Pack Reusable Pads Set: 4 Layer Absorption Leakproof Pads for Periods Postpartum Incontinence Free Wet Bag Included
Organic cotton + synthetic waterproof backing (unspecified)
Skip until waterproof treatment is disclosed, reusable pads often use water-repellent coating coatings that may contain PFAS.
⚠Waterproof or stain-proof treatment
Aunt Flow
Universal Menstrual Pad with Wings
Cellulose, cotton, plastic film waterproof backing
Lower concern, but waterproof backing warrants caution without PFAS transparency.
⚠Waterproof or stain-proof treatment
Every grade uses the same public rubric. How grades work →