I was really excited to get this product as I had been unhappy with the colour of my teeth forever. It came in a really nice box and I was really looking forward to my whiter teeth. I used it once a day, just like it's recommended and waited.
And yes, it actually did something. After like 4 uses, strange white spots appeared on my teeth. I thought they might go away and went on using the gels until they were empty.
My conclusion: All that happened to me was that I got white spots on my teeth and they now look worse than before. I went to the HiSmile's website to check if they offer a refund or anything like that - but they don't. So I'm certainly not buying this stuff again.
Bottom Line: No, I would not recommend this to a friend
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