Products are split into three levels based on ingredient labels
flex
Period Discs
Last verified: March 4, 2026
- Medical-Grade Polymer Blend
- Mineral Oil
- Carbon Black (<2%)
- Antioxidant Polymer Stabilizer (<1%)
Why This Product is Rated STOP
Period Discs by flex has been evaluated by Million Marker and contains ingredients with known health concerns. This product is rated STOP, indicating higher concern.
We recommend avoiding STOP-rated products and seeking safer alternatives from our GO or SLOW categories.
Frequently Asked Questions
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