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By Susan Volk, BURST Ambassador, RDH — Last updated August 19, 2026
Short answer: At 15% hydrogen peroxide in a flexible, ready-to-use tray, Burst’s Prefilled Whitening Trays sit a step above strips in concentration and full-coverage contact — the closest at-home option to what a practice offers chairside.
What’s in the box
6 trays (3 whitening treatments), 15% hydrogen peroxide in an enamel-safe formula, plus a soothing blend of aloe vera, coconut oil, and xylitol. The soft, elastic tray material adapts to different tooth shapes for 360° coverage, and it’s mess-free and rinse-free.
How trays differ from strips
Strips adhere to the visible front surface of teeth; a tray covers the full arch at a higher peroxide concentration (15% vs. the strips’ 6%).
The conversation worth having before recommending trays
Patients with a history of sensitivity or untreated decay should check in before starting a higher-concentration at-home product.
Frequently Asked Questions
Are prefilled whitening trays better than strips?
They use a higher peroxide concentration (15% vs. 6%) and offer fuller, 360° coverage.
How many treatments come in a pack?
6 trays = 3 whitening treatments.
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