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Instead of hydrogen peroxide, this gel uses carbamide peroxide, which has similar whitening powers but works more slowly (which is why you need to keep it on for about 30 minutes). This particular formula is the strongest one Auraglow offers, so it’s not for the faint of heart. However, if you feel like you’re ready for the major leagues, it promises to zap away stains and yellowing in a little over a week.
Count: 30 treatments (3 syringes)
Key ingredient: Carbamide peroxide
Amazon rating: 4.3/5 stars
An Amazon reviewer says: “I am a dental hygienist, and I wanted to try this whitening gel before recommending it to my patients. I have been using this whitening gel for two weeks now, and my teeth are three shades whiter. I’ve also received many compliments from my patients on how white my teeth look.”