Yikes! Why Are My Invisalign Trays Turning Yellow?

When you put on your first set of Invisalign trays, they practically disappeared. It was amazing! After avoiding orthodontics for years because you thought you had to get braces, now you have a treatment that no one will notice. That is, until your trays started taking on a distinct yellow tint. While this is fairly common, that doesn’t make it any less annoying! What’s causing this to happen? Is there anything you can do about it? Fortunately, there are clear answers to both of these questions.