Stayfree Ultra Thin Review, Is Stayfree Ultra Thin Non-Toxic?
Stayfree Ultra Thin averages 37 out of 100 on PFAS Authority's PFAS and toxin screen across the 3 Stayfree Ultra Thin products graded as of October 2026, and none of them reach its 70 point pass mark.
Stayfree Ultra Thin grades Poor on our four-band scale. On disclosure, the brand says nothing publicly about PFAS. See what every brand has published about PFAS for how that compares.
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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Stayfree Ultra Thin
Pads Regular
- absorbent core, plastic backing (unspecified)
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- Plastic backing composition and leachables, The unspecified plastic layer could release trace monomers or…
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Stayfree Ultra Thin
Stayfree Pads Ultra Thin Regular Wings
- Nonwoven synthetic fibers with waterproof backing, coating unspecified
- We found no PFAS statement from the brand
- PFAS, Unspecified waterproof backing strongly suggests Teflon-family coating or fluorochemical treatment…
3 hazards checked on this product. See all of them.
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Stayfree Ultra Thin
Super Long Pads with Wings
- Nonwoven polymer, waterproof backing (unspecified treatment)
- We found no PFAS statement from the brand
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Stayfree Ultra Thin and PFAS, common questions
- Does Stayfree Ultra Thin have PFAS?
- Stayfree Ultra Thin averages 37 out of 100 on PFAS Authority's PFAS and toxin screen across the 3 Stayfree Ultra Thin products graded as of October 2026, and none of them reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is Stayfree Ultra Thin non-toxic?
- No Stayfree Ultra Thin product we graded reaches Good. The best of them is Stayfree Ultra Thin Pads Regular at 60/100.
- Which Stayfree Ultra Thin products should I avoid?
- The lowest-graded Stayfree Ultra Thin products we have scored are Stayfree Ultra Thin Super Long Pads with Wings, Stayfree Pads Ultra Thin Regular Wings, Stayfree Ultra Thin Pads Regular. Each one links to the evidence behind its grade.
Every grade uses the same public rubric. How grades work →