Regard Contact Lens Solution contains an active disinfectant (OxyChloriteTM) that breaks down into the components of natural tears (H20 and NaCl) and releases oxygen. It is kind to your eyes due to the absence of preservatives like PHMB. Regard cleans, rinses, disinfects, stores and lubricates soft contact lenses and is designed to help prevent the formation of protein deposits on the lens surface without enzyme protein removers. Regard Contact Lens Solution is a sterile, isotonic, buffered solution that contains purified water, sodium chloride, boric acid, hydroxypropylmethylcellulose (0.15%), poloxamer and OxyChloriteTM.