Is Flex PFAS-free?

Flex

Menstrual Cup

Medical-grade silicone

C

F

PFASAll

Lower PFAS concern; menstrual cups have no functional need for PFAS, but Flex does not publicly disclose material sourcing or testing.

⚠Risky category by default

Flex

Cup Starter Bundle

Medical-grade silicone, no added Teflon-family coating

C

F

PFASAll

Lower concern, silicone menstrual cups have minimal PFAS exposure pathways, but Flex has not publicly disclosed PFAS testing.

⚠Risky category by default

Flex

Menstrual Discs

Medical-grade silicone

C

F

PFASAll

Lower concern; silicone-based period product with no known PFAS risk, but brand provides no transparency.

⚠Risky category by default

Flex

Cup Menstrual Slim Pack of 1

Medical-grade silicone

C

F

PFASAll

Lower-concern product; silicone menstrual cups rarely require PFAS treatments.

⚠Risky category by default

Flex

Reusable Menstrual Cup | Flex Cup Size 01

Medical-grade silicone

C

F

PFASAll

Lower PFAS concern; medical-grade silicone has no known PFAS need, but Flex does not publicly address it.

⚠Risky category by default

Flex

Reusable Menstrual Disc

medical-grade silicone

C

F

PFASAll

Lower-concern choice; silicone is not a PFAS vector, but brand offers no transparency.

⚠Risky category by default

Flex

Silicone Menstrual Cups

Medical-grade silicone (body-contact surface)

C

F

PFASAll

Lower-concern product; silicone cups don't require PFAS-prone treatments, but manufacturer silence on sourcing limits full confidence.

⚠Risky category by default

Flex

Disc Annual Supply Sustainable Period Products

Medical-grade silicone (primary); no disclosed coatings

C

F

PFASAll

Lower PFAS concern for silicone disc, but brand offers no reassurance, verify materials directly if risk-averse.

⚠Risky category by default

Flex

On-the-Go Period Kit

absorbent cotton/cellulose with standard polymer packaging

C

F

PFASAll

Lower PFAS concern; period products are intrinsically lower-risk, but Flex offers no transparency.

⚠Risky category by default

Flex

4x U By Kotex Click Comfort Flex Tampons Super Unscented 32 Count

viscose rayon core, cotton cover, plastic applicator

C

F

PFASAll

Lower PFAS concern; standard tampon construction unlikely to require fluorochemicals.

⚠Risky category by default

Flex

Playtex Sport Tampons

Cotton/rayon absorbent core, plastic applicator

C

F

PFASAll

Lower PFAS concern for the core material; applicator plastic warrants caution absent disclosure.

⚠Risky category by default

Flex

Disc Daily Liners Menstrual Pads Bundle

Cellulose, absorbent core, cotton-based layers

C

F

PFASAll

Lower PFAS concern; standard period-pad materials rarely treated with fluorochemicals, but no independent verification.

⚠Risky category by default