Product Description Boston ORIGINAL Conditioning Solution contains a wetting agent that coats the surface of your lens to make them smooth, wet and comfortable. This ingredient actually helps reduce the friction between your lens and your eye and the preservative system is gentle on eyes. Effective lens cleaning solution for gas permeable (GP) and hard contact lenses. From the Manufacturer Boston ADVANCE Conditioning Contact Lens Solution, from the eye care experts at Bausch + Lomb, is step 2 in the Boston ADVANCE Formula Care System. This contact solution soothes your eyes and provide lens wearing comfort. The wetting and cushioning system enhances comfortable wear by surrounding lenses with moisture. To use, wash hands. After step 1 with Boston ADVANCE Cleaner and a saline rinse, place lenses in empty lens case and fill to top ridges with fresh Boston ADVANCE Conditioning Solution. Soak lenses for 4+ hours or overnight before wearing. After removing lenses from lens case, apply fresh Boston ADVANCE Conditioning Solution to wet the lenses for additional conditioning, if desired, and insert. For full instructions, see information printed inside the product carton. For fluoro silicone acrylate and silicone acrylate rigid gas permeable contact lenses. Not for use with soft (hydrophilic) contact lenses.