Try the Biotrue Multi-Purpose Solution today and feel the advanced lens care inspired by your eye biology. Biotrue was created after an intensive study of how the eye works to be cleaned, hydrated and kept healthy in a natural way. Biotrue provides excellent disinfection and is the only solution that combines three innovations inspired by biology: It has the same pH as healthy tears. It has a lubricant naturally found in the eyes. It keeps some beneficial tear proteins active. Biotrue helps keep fluid lenses for Up to 20 hours, perhaps for this 97% of Biotrue people are satisfied with it and prefer it at a 3: 1 ratio to the dominant multipurpose solution.