Cup Starter Bundle vs Package Free Shop Soft Menstrual Cup Duo Pack: which is safer?
Flex Cup Starter Bundle is our pick: better on PFAS and on the overall hazard picture.
Our pick
Flex
Cup Starter Bundle
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleResidual manufacturing compounds / silicone impurities
PossibleMold or bacterial colonization from improper storage
Saalt
Package Free Shop Soft Menstrual Cup Duo Pack
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleHeavy metals in silicone batch or additives
PossibleBacterial growth or biofilm if poorly maintained
PossibleIncomplete disclosure of coating lubricants or release agents
Where these two actually differ
- We flag Residual manufacturing compounds / silicone impurities and Mold or bacterial colonization from improper storage on the Flex and not on the Saalt.
- We flag Heavy metals in silicone batch or additives, Bacterial growth or biofilm if poorly maintained and Incomplete disclosure of coating lubricants or release agents on the Saalt and not on the Flex.
- The Flex is Medical-grade silicone, no added fluoropolymers where the Saalt is Medical-grade silicone, which is most of the difference in these two grades.
- These two are level, close enough that price and fit should decide it rather than our grade.
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