Used 1-2 years ago not great but since it’s improved I’m willing to try again [SEP] I tried this brand for whitening 1-2 years ago not great but noticed a low hydrogen peroxide in gel so made sense I see it has improved so idk but I use to have my now retired dentist make the trays with as he called beach gel maybe the camidol peroxide 44 percent he said bleach maybe my teeth where so white the over the counter pens strips and lighting w gel are ok sone better I am willing to try your better new improved kit and give honest feedback with daily pics I’m overdue and need a great product that I can brag on thru Amazon and your company please get in contact with me I will try to send email to your company in honest and hopefully your whitening kit works as great as it looks nice case light tubes of the gel look nice I’m hoping you will reach out to me I’m eager to see if it’s improved as honest feedback with daily pics is what I’d want to see to spend alot on just a pretty kit I’m sure it’s better let’s take the challenge I’m up for it! Ty Diane Presley send on this acct or ck your email if you have one Il look your co up hoping to hear from you ty