Crystal Clear Teeth Whitening Kit, USA Dentists Approved, Teeth Whitening Gel with LED Light, 30ml Gel and Tray

My teeth have been sensitive for years and Sensodyne is my go-to toothpaste. This is my first any type of teeth whitening experience and so I was a bit nervous but gave it a shot anyways. I followed recommendations and instructions quite meticulously. I have read on Realself that you should use a fluoride mouthwash before any teeth whitening procedures. So I prepared by first flossing and rinsing with some Listerine sensitivity mouthwash. Then I dried off the saliva from the surface of my teeth with regular kitchen paper towels and then I used a q-tip to apply just enough whitening gel on the surface of my teeth. I only used the gel sparingly and wipe off the gel if it gets on my gums. I left the gel on for 15 mins instead of 30 mins to start off the first time worrying about sensitivity issue but surprisingly I did not have a problem. I stayed off cold beverages and red wine and such for a day or so after the treatment. It has been a week and my teeth are whiter and I am pleased with the result and will continue using this gel.

works fine

I'd buy this product again. My teeth started out around 7/8 and now around 5/6. I don't think my teeth will get any whiter because of antibiotic use as a teen and a facial injury that killed a root. I'm happy with my results. Other reviews indicate the mouth piece is bulky, but I don't think so considering the technology. The mouth piece is no different then getting a mold of your teeth when you visit your dentist. The mouth piece is made of a soft rubber like material and is flexible . Please note, the manufacturer does note that not everyone teeth will get super white due to several factors not related to the product ie: antibiotic use or tooth damage. This product gave me a slight sensitivity, but it went away a day after using. I applied the gel with a q-tip to make sure I didn't get any on my gums, which could have a slight burning sensation, but comes with every tooth whiting product if it gets on the gum. I started off with three 15 min treatments and slowly increased the time. Again as a note, not everyone's teeth will get super white.

If I could give this zero stars, I would. I used this based on the recommendations and it weakened my teeth. They became really sensitive after three uses, so, I stopped and my front tooth just chipped while eating a candy bar!!! I've never ever had weak teeth. Not even a cavity or any other chips, but this definitely will cost me. It did whiten them slightly, but not worth it for the other side effects

Product must be used sparingly & applied to teeth w/ cotton swab. It causes sensitivity. Must use every other day or every two days in between. It does whiten with use but takes time. Iv noticed an improvement after about ten applications. Mouth piece is uncomfortable. Mouth produces lots a saliva while wearing for 30 minutes of even 15 minutes. Will continue to use & see what happens. I say its worth a try but be careful for sensitivity to gums & teeth.

It's easy to use. I do it at night while reading a book or scrolling Instagram. And it doesn't give you fake white teeth like I see some people have. The whitened teeth you get look very natural.

No instructions and batteries were dead

The plastic vinyl or rubber trays have a horrible smell! The minute I opened up the bag I could just smell it so strong I let them air out overnight! When I tried to use them and put them in your mouth you still have that horrible smell of plastic, or whatever it is made out of.