Sterile. For contact lens wearers. Soothing relief from dryness and irritation associated with contact lens wear. For use with soft and RGP (Silicon acrylate and fluorosilicone acrylate rigid gas permeable lenses are recommended for use with Refresh Contacts.) contact lenses. For lasting comfort. Refresh Contacts Comfort Drops provides moisturizing relief from dryness and irritation associated with lens wear. The unique formula contains a long-lasting lubricant that actually helps your eyes retain moisture, creating a cushion of comfort and protection. Refresh Contacts may be used with soft and RGP (silicon acrylate and fluorosilicone acrylate) contact lenses. Safe to use as often as needed. For added comfort, place a drop in lenses prior to insertion. Refresh Contacts Comfort Drops is used to lubricate and rewet soft and rigid gas permeable (RGP) (Silicon acrylate and fluorosilicone acrylate rigid gas permeable lenses are recommended for use with Refresh Contacts.) contact lenses as well as to cushion lenses prior to application. This preparation contains no chlorhexidine, no thimerosal and no other mercury containing ingredients.