How do I store the whitening trays and gels?

Allow the trays to air dry before closing the tray case and storing them. Store them in a cool, dry place between uses. 

You should store the whitening gel between 59 °F and 77 °F (15 °C and 25 °C) in a dark, dry place. Do not refrigerate or freeze. Storage temperatures above 77 °F (25 °C) will reduce shelf life. You can keep a syringe for 30 days after opening it.