Biotrue Multi-Purpose Solution for soft contact lenses including silicone hydrogel lenses. Cleans + Disinfects + Hydrates. Removes dirt and protein buildup. Kills 99.9% of germs tested.^^ Up to 20 hours of Hydration.* Enhanced with HA, a Natural Moisturizer.^ Naturally Inspired Ingredients. Hyaluronan^ (HA) is a moisturizer found naturally in tears. Matches the pH of healthy tears to help make contacts comfortable upon insertion. Tech Tested. Helps lenses stay comfortable when using digital devices. *Based on a laboratory study. ^^Standardized Testing (ISO 14729) against S. aureus, P. aeruginosa, S. marcescens, C. albicans, F. solani. ^Hyaluronan is sourced from a large scale natural fermentation process.