I’m a J1 student and just when I arrived in the US, my upper retainers broke so I found about clearretain on tiktok even though they didn’t seem that famous, i tried it because going to a dentist was so expensive and the experience with them was great, they even sent me a bigger tray because my impressions weren’t good enough, the answer the emails pretty fast and the final result of the retainers are good, great quality and nice costumer service on the best price!