Bright Eyes uses a special blue formula which was originally developed in Paris over 50 years ago. These drops are specifically formulated to whiten and brighten red and tired eyes. The eye whitening results are achieved using an ingredient called Methylene blue, this has been used in medicine for over 120 years and now can help your eyes look their best even on the dullest of days. With just 1 to 2 drops in each eye Bright Eyes gets to work to hide redness and provide a natural looking glow to the whites of our eyes.