I think the product is easy to use and it works without any irritation or problems. The results are not overnight. I started at a 4 on the color chart and wanted to head to a 1. After 2 weeks of daily whitening, I was at a 2. I figure 1 more week and I will achieve my goal of being at a 1. Then I'll be in maintenance mode of very white teeth. So easy!
3 years ago
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