Top positive review
Way better than the high street stuff
Used to buy the cheap whitening pens from the shop and they never did much. This is a different level, the gel is stronger but it doesn't leave my teeth sore like the pens did, and the tray fits properly so the gel doesn't end up everywhere. Took a couple of weeks to see the full result but it's clearly working. Probably my best purchase this year tbh.
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