Teeth Whitening Gel

Teeth Whitening Gel Refills for Trays

Teeth whitening gel is one of the most effective ways to brighten your smile from the comfort of home or in a professional setting. Designed for use with custom whitening trays, universal whitening trays, and professional dental trays, carbamide peroxide teeth whitening gel helps lift stains caused by coffee, tea, wine, tobacco, and everyday discoloration.

At The Whitening Store, our White in Minutes® teeth whitening gels are manufactured in the USA using high-quality ingredients and are designed to provide professional-quality whitening while remaining easy to use. Whether you're replacing the gel from a previous whitening kit or purchasing a whitening gel refill for your trays, our formulas are available in multiple strengths to suit different whitening goals and sensitivity levels.

All White in Minutes® whitening gels are vegan, cruelty-free, gluten-free, kosher, fluoride-free, and manufactured in FDA-certified facilities. Our gels are compatible with most tray whitening systems and can be used with custom-fitted trays, boil-and-bite trays, and many retainer-style whitening trays.

Choosing the Right Teeth Whitening Gel Strength

Selecting the right carbamide peroxide concentration depends on your whitening goals, staining level, and sensitivity.

16% Carbamide Peroxide
Ideal for first-time users, maintenance whitening, and individuals with higher tooth or gum sensitivity. Provides gentle whitening with excellent comfort.

22% Carbamide Peroxide
A popular middle-ground option that balances whitening performance and comfort. Well suited for users with mild sensitivity who want enhanced whitening results.

35% Carbamide Peroxide
Designed for experienced whitening users with little to no sensitivity. A great choice for moderate to heavier staining and those seeking stronger whitening performance.

44% Carbamide Peroxide
Our highest-strength carbamide peroxide whitening gel. Best suited for experienced users who are comfortable using higher-concentration whitening products and want maximum whitening power for more stubborn stains.

How Long Should I Use Teeth Whitening Gel?

Most customers use teeth whitening gel for 2 to 10 consecutive days depending on the severity of staining and their desired results. Once your preferred shade has been achieved, occasional touch-up treatments can help maintain a brighter, whiter smile over time.