Bio True Multi-Purpose Lens Solution is a sterile, isotonic, multi-purpose solution inspired by the human eye. It matches the pH of healthy tears and utilises lubricant found naturally in the eyes. It contains certain beneficial tear proteins active, keeping lenses moist for up to 20 hours. The solution can be used daily to cleanse, remove protein deposits, rinse and store soft contact lenses. It serves as chemical disinfection that helps cleanse and fight germs.