The Boston Advance Conditioning Solution provides a complete conditioning cycle which works at wetting, soaking & disinfecting any hard or gas permeable contact lenses. The Boston Advance Comfort Formula Conditioning Solution helps to reduce any friction against both the cornea & eyelids whilst removing any particles matter that may cause the wearer irritation & discomfort. The special formula is designed to be biocompatible with your eyes & contains an optimised preservative system that works to effectively remove any harmful organisms on the surface of your hard or gas permeable lenses. This pack contains a month