Where should I store the Colgate® Max White Toothbrush + Built-in Whitening Pen? Do I need to clean it before storing?

Colgate® Max White Frequently Asked Questions (FAQ's)

Always store the pen inside the toothbrush handle. Before storing, wipe remaining gel and moisture from tip to clean. Do not use water. The pen comes with a cap that should be discarded once packaging is opened for the first time.

New Colgate® MaxWhite One Optic toothpaste