It’s not uncommon for menstrual cups to discolor over time with use for various reasons. Mild to moderate discoloration does not impact the performance of your VOXAPOD cup. We recommend that you regularly inspect your menstrual cup and replace it if there are signs of deterioration. To prevent and remove stains:- Rinse your cup with cold water before washing it with mild soap and warm water to help prevent stains from setting in- Use VOXAPOD cup wash on a regular basis (New product coming soon!)- Follow the cleaning instructions in your VOXAPOD care guide- Do not wear your cup for longer than the recommended amount of time- Scrub your cup with a cleaning toothbrush or washcloth- Give your cup a sunbath by setting it in direct sunlight inside for several hours allowing it to naturally ‘bleach’ the stains- Make a paste with baking soda and water and gently scrub your cup with it, sterlizing it afterward, before next use - Use our colored menstrual cup (New product coming soon!)We do not recommend using alcohol or harsh cleaning chemicals as they could deteriorate and compromise the quality of the silicone.