Contact lens solution. Cleans + disinfects + Hydrates. Up to 20 hours of moisture (Based on a laboratory study) Conditions, cleans, removes protein, disinfects, rinses, stores, for soft contact lenses including silicone hydrogel. lens case. Enhanced with HA, a natural moisturizer ( Hyaluronan is sourced from a large scale natural fermentation process). Biotrue multi-purpose solution for soft contact lenses including silicone hydrogel lenses. We believe that the best inspiration comes from nature. That's why our formula is inspired by the biology of the eye. Naturally Inspired Ingredients Hyaluronan ( Hyaluronan is sourced from a large scale natural fermentation process), (HA) is a moisturizer found naturally in tears Matches the pH of healthy tears to help make contacts comfortable upon insertion. Cleans + Disinfects + Hydrates. Removes dirt and protein buildup. Kills 99.9% of germs tested (Standardized Testing (ISO 14729) against S. aureus, P. aeruginosa, S. marcescens, C. Albicans, F. Solani). Provides up to 20 hours of hydration (Based on a laboratory study).