Ziggy Cup 2, Reusable Menstrual Disc, Menstrual Cup, Period Cup, medical-grade silicone vs Steriliser Purple: which is safer?

Ruby Cup Steriliser Purple is our pick: better on PFAS and on the overall hazard picture.

Intimina

Ziggy Cup 2, Reusable Menstrual Disc, Menstrual Cup, Period Cup, medical-grade silicone

PFAS grade

C 70/100

Overall grade

F 58/100

Verdict

Buy

Hazard flags

⚑ 3

Material

Medical-grade silicone (no Teflon-family coating or coating disclosed)

Confidence

78%

PossibleBacterial or mold growth on exterior surface

PossibleToxic Shock Syndrome (TSS) association

PossibleLoss of seal integrity or structural failure over time

Why this gradeBuy

Our pick

Ruby Cup

Steriliser Purple

PFAS grade

B 80/100

Overall grade

C 72/100

Verdict

Buy

Hazard flags

⚑ 2

Material

stainless steel steriliser/heating element

Confidence

72%

PossibleElectrical safety (heating element corrosion)

PossiblePlastic or silicone seals/gaskets degradation

Why this gradeBuy

Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →

More menstrual cups: see the full ranking