Expiration date

I bought some mms about ten years ago and only used a small amount of it. Both bottles used to make it have been opened but stored under my kitchen cabinet all this time out of the light and at room temperature. I now am suffering from a candida issue and am wondering if the mms can still be used after so long? When does it expire? It still smells strong.

Thanks!

Make a 3 drop MMS1 dose and look for a color change from yellow to dark amber at 30 seconds. If that happens, MMS and activator are working normally.