Will the silicone discolour over time?

Silicone can discolour gradually over time due to UV light, or the acidic pH level of the skin.  The rate of discolouration will vary depending on the pH level of the skin of the person wearing the product, as well as how much contact the product has with UV light.  We recommend always wiping them down after use and storing them in the case provided to help decelerate the oxidization process.