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I’ll be honest: a lot of home whitening kits take too much work for the results they offer. I’ve tried strips that took almost an hour to work their (frankly, underwhelming) magic, and used “brightening” toothpastes which I swear made no difference at all.

Maybe it’s because I have what my dentist informed me are genetically more yellow teeth, which seem to run darker than normal no matter what I do.

So it’s safe to say I was pretty sceptical when SmilePro’s Advance Whitening Kit, which promised whiter teeth with sessions lasting as little as 10 minutes, fell through my letterbox.

Spoiler alert: I should not have been.

The sleek set includes brush pens packed with whitening gel, a rechargeable LED tool with blue, red, or mixed options, a charger and case, and a tooth shade guide.

The red........

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