I bought the "vivid" ones that are supposed to make them whiter half hour a day for twelve days. First night doing them and they just feel all gross and icky. I want white teeth for my brother's wedding because bridesmaid = pictures and I'm self-conscious anyways so I figured why not fix some of the small imperfections.... I feel like my teeth are slimy right now.
Has anyone done these? Am I doing them wrong? Does it get better?

Formerly known as KJLx121.
Re: So I'm trying these crest whitestrip things...