What are the shelf life and care instructions of the Precision Whitening Pen by BURST? February 14, 2024 16:08 Updated When stored in a cool, dark place, our whitening pen has a shelf life of up to two years. Related articles Can the Precision Whitening Pen by BURST be used on dental work like crowns or veneers? Precision Whitening Pen by BURST Manual Can the Precision Whitening Pen by BURST be used on the go? How quickly will I see results using the Precision Whitening Pen by BURST? Is the Precision Whitening Pen by BURST safe to use?