Snow does a great job of giving the impression that the results are immediate. They're not. I've used it every day for 2.5 weeks, starting at a 5 on the tooth scale where I am still a 5 and it's 2.5 weeks later. Their customer service is severely backlogged, so if you have an error with your order, it will take 4 weeks, 6 emails, 4 phone calls, a kidney, and Instagram to solve it. I ordered a full kit and an extra mouthpiece. Got the full kit, no extra mouthpiece. I emailed 3 times with no response from the company before I called.. when I called, I had to leave a VM, which I left very specific details about what was missing. I get a call back 2 days later from a guy who says "if you're missing the toothpaste, it doesn't ship for another few weeks". Clearly he didn't get the details I left, including order number name what I ordered and what was missing. So I send an email. Again no answer. Call again, email, you get the idea. Then I see snow is on insta so I send a msg explaining my issue. The repnon insta is in the ball dang. She gets me my missing mouthpiece within 2 days and sends me some floss. Insta rep has top C's skills. It still doesn't negate the fact that I just don't know if it's even working. I use it the full 30 min every night and I've not changed a single level on the tooth guide hey send. I'll use it for the full 21 days and pray for a miracle. I'll keep you all posted.