For anyone looking to straighten your teeth, this REALLY works ! I wanted to straighten my teeth but did not want to wear metal braces because of the frequent dental visits, so when invisible braces came out it was perfect. I chose zenyum because it is a fraction of the usual price, and they were very transparent with the price, no hidden costs. The whole journey lasted 8 months for me and in a blink of an eye I now have perfectly straight teeth, thanks to zenyum! The zenyum team has been extremely supportive. Special thanks to Brindha who was extremely committed to ensuring my success and that I complete the journey, checking on me weekly, and being responsive to all my queries at any time of the day/week. After the first few weeks, I thought of giving up because it caused me slight inconvenience (having to remove them before meals etc) , but I open the last set of trays and saw a set of perfectly straight teeth - and I knew then that as long as I complete the journey my teeth would be perfect. Soon enough, wearing the trays became a habit and was no longer an inconvenience. Thank you Zenyum, 5 stars for your product and service. :)