Discolouration of menstrual cup cleaning?

Question

Okay so I've been using my Meluna cup for about a year or so now. My cup has been starting to get some staining. I boil it with vinegar and salt which has defiantly slowed down the staining process but hasn't really stopped it as such. I was looking for ways to get rid of staining and I found that letting it sit in 3% hydrogen peroxide gets rid of the staining almost completely! However, the lady that I found online that used this method used a Diva Cup which is already white. But my Meluna cup is blue. If I leave it to sit in hydrogen peroxide will I change the colour of my cup at all? And also does hydrogen peroxide react differently with TPE than it does with medical grade silicone? Thanks!!!

Answer

I wouldn't recommend cleaning it with hydrogen peroxide very often. It can cause the cup to deteriorate faster. So, once probably wouldn't be a big deal.  And the peroxide shouldn't change the color of the cup. I read somewhere that a lady used peroxide on a green cup. Also, don't let the discoloration bother you too much. It's natural for it to stain. And since the silicon used isn't porous, you don't have to worry about anything being left behind.