They work
I gave them to my friend who is a coffee drinker and smoker. He brushed his teeth and used the strips for a hour every night before bed. His teeth were clearly lighter after the first use.<br />He brushed his teeth after using them because of the taste. They did not make teeth sensitive like other more expensive brands. He only used them once a day for 9 days and his teeth look like he got it done at the dentist. We’ll save the rest for when he quits smoking
Rating: 5 stars