Should I Really Refrigerate my Zoom Kit?
Doctor Answers 2
Refrigerating Whitening Gel
You should refrigerate the whitening gel and take it out of the refrigerator about an hour before use. Keeping the gel in your refrigerator keeps the ingredients fresh longer.
Refrigerate the unused portion of Zoom
If you are in the process of whitening then no..Let the tube you are using remain at room temperature so it makes it more comfortable.