Is Cups & Co PFAS-free?
Across 8 graded products, Cups & Co averages F (53/100). On disclosure, the brand says nothing publicly about PFAS. 5 of its products grade C or better. Grades are model-based estimates, not lab results.
Worth buying from Cups & Co C or better, safest first
Cups & Co
The Period Company The Bikini Period. in Sporty Stretch For Heavy Flows
Nylon/spandex blend with gusset absorbent layer
Lower-concern product; period underwear rarely uses PFAS, but brand silence on materials limits full assurance.
⚠Risky category by default
Cups & Co
The High Waisted Period Microfiber For Medium Flows
microfiber (synthetic polyester/nylon blend)
Lower PFAS concern than apparel, but microfiber opacity warrants caution; brand transparency lacking.
⚠Risky category by default
Cups & Co
The High Waisted Period. in Sporty Stretch For Heavy Flows
Elastic/cotton blend with synthetic stretch (likely spandex or polyurethane)
Lower PFAS concern for a period-care textile, but brand transparency is minimal.
⚠Risky category by default
Cups & Co
The High Waisted Period. in Organic Cotton For Heavy Flows
organic cotton
Lower-concern choice; organic cotton period underwear has no inherent PFAS trigger, but brand transparency is absent.
⚠Risky category by default
Cups & Co
Cotton Leak-Proof Brief 2-Pack by Comfort Choice in Dark Pack (Size 11)
Cotton with absorbent core (period-care brief)
Lower PFAS concern for core material; period-care brief with no water-repellency claims suggests minimal water-repellent coating treatment risk.
⚠Risky category by default
Graded and flagged D and F, we’d swap these
Cups & Co
PERIOD Bikini Period Underwear for Medium Flows
Absorbent gusset (likely cotton blend); waterproof backing coating unspecified
Skip until brand discloses waterproof coating chemistry, PFAS risk unclear.
⚠Waterproof or stain-proof treatment
Cups & Co
Cabana Cotton Leakproof Bikini
Cotton with proprietary waterproof/leakproof coating
Skip until brand discloses coating chemistry or third-party tests leak-protection layer.
⚠Waterproof or stain-proof treatment
Cups & Co
The High Waisted Period. In Sportystretch For Heavy Flows
Sportystretch fabric (likely synthetic blend with waterproof/moisture-barrier treatment, composition unspecified)
Skip until the brand discloses materials and treatment chemistry, waterproof sportswear frequently uses PFAS-based water-repellent coating finishes.
⚠Waterproof or stain-proof treatment
Every grade uses the same public rubric. How grades work →