Auraglow Teeth Whitening Kit, LED Accelerator Light, 35% Carbamide Peroxide Teeth Whitening Gel, 20+ Whitening Treatments, Whitens up to 10 Shades in 7 Days

Why it's worth it

This is the full LED kit experience — moldable tray, carbamide peroxide gel and an accelerator light — for a fraction of what the premium devices ask. Carbamide releases its peroxide slowly, so it's a gentler place to start than a high-strength strip.

You get every piece of the system in one box. A moldable tray, gel for 20-plus treatments and the LED light, so there's nothing else to buy before your first session. Kits at this end of the market often sell you the light and then the gel separately. Here the whole routine is covered from the start.

Carbamide peroxide is the gentler chemistry. It breaks down into hydrogen peroxide gradually instead of hitting enamel all at once, and research points to lower peak sensitivity at comparable bleaching strength. Thirty-five percent carbamide sounds enormous next to a 15% peroxide strip, but only about a third of it converts to active hydrogen peroxide.

From our review of 10 teeth whitening kits, by Sarah Wright, Editorial Associate

What we like

• +You get every piece of the system in one box
• +Carbamide peroxide is the gentler chemistry
• +A tray beats a strip if your teeth aren't perfectly straight

What to know

• –A boil-and-bite tray is not a custom tray
• –Results arrive slowly enough to test your patience