Works while you wear your lenses to moisturize your eyes and lenses. For soft (hydrophilic) lenses, including silicone hydrogel and gas permeable* contact lenses. OPTI-FREE REPLENISH Rewetting Drops moisturize and refresh your lenses for greater wearing comfort. They also help remove particulate material that may cause minor irritation, discomfort, dryness, blurring and itchiness while wearing your lenses. OPTI-FREE REPLENISH Rewetting Drops contain patented RLM-100, which helps prevent protein deposit build-up on soft (hydrophilic) lenses while you wear them, when used as directed. *Fluorosilicone acrylate and silicone acrylate gas permeable lenses.