Is Ruby Cup PFAS-free?
Across 8 graded products, Ruby Cup averages C (73/100). On disclosure, the brand says nothing publicly about PFAS. 8 of its products grade C or better. Grades are model-based estimates, not lab results.
Worth buying from Ruby Cup C or better, safest first
Ruby Cup
Steriliser
Stainless steel heating chamber with silicone/plastic components
Lower-concern menstrual cup sterilizer; stainless core typical for appliances, but silicone/plastic parts unspecified, contact brand for material detail.
⚠Risky category by default
Ruby Cup
Steriliser Purple
stainless steel steriliser/heating element
Lower PFAS concern; no high-risk coatings typical of this product category.
⚠Risky category by default
Ruby Cup
Reusable Menstrual Cup
Medical-grade silicone (primary); no surface coatings reported
Lower PFAS concern; menstrual cups are inherently low-risk, but lack explicit brand transparency.
⚠Risky category by default
Ruby Cup
Menstrual Cup Medium / Red
Medical-grade silicone
Lower-concern choice; medical-grade silicone is not a known PFAS vector, though brand offers no explicit assurance.
⚠Risky category by default
Ruby Cup
Ruby Cup
Medical-grade silicone
Lower concern, silicone cup unlikely to contain PFAS, but brand is silent on sourcing.
⚠Risky category by default
Ruby Cup
menstrual cup 2 -pack -size S + M (light/strong days) -including 2 donations!Soft and ergonomic- ideal for beginners -rot
Medical-grade silicone
Lower PFAS concern; silicone menstrual cups rarely require PFAS treatments, but Ruby Cup doesn't publicly disclose composition details.
⚠Risky category by default
Ruby Cup
Flex Menstrual Cup
Medical-grade silicone
Lower PFAS concern; menstrual cups are simple silicone bodies without typical high-risk coatings.
⚠Risky category by default
Ruby Cup
Menstrual Cup
Medical-grade silicone
Lower concern; silicone cups lack typical PFAS sources, but brand does not disclose testing.
⚠Risky category by default
Every grade uses the same public rubric. How grades work →