To care for your bi-weekly or monthly contact lenses, you need Avizor All Clean Soft multi-purpose solution. The composition of the solution contains a component that excels in its moisturising ability, significantly enhancing the comfort and clarity of your contact lenses. Do not use the solution for more than 90 days after opening the bottle. Keep the lenses in solution for at least 4 hours to ensure complete disinfection and hydration. 350ml bottle.