Crest Whitestrips Supreme Professional Strength 84 strips

Comment: I am 52 and had tetracyclene stains. This stuff works great. You might need two boxes, but it works fantastically on grey stained teeth.

Comment: They definitley whiten better than the OTC strips, but I have not found them to whiten as well as trays from dentist ...which I think cost about $100-$150. Neither are fun. Trays made my teeth very sensitive and had to wear many nights overnight which wasn't fun. Strips are somewhat messy and impossible to talk well in them and very noticeable. and don't sneeze or they will come off! I used Sensodyne throughout so that kept senstivity at bay. Probably a fair value for $50. I didn't re-use my trays because I have one slighly crooked upper tooth and when they made the mold and I wore it for several hours it made my tooth more crooked!! Surface stains are gone now from the strips but time will time how long it lasts as I am still on day 19 of 21 days of strips.

Comment: I used the whitestrips as directed, skipping one of the teatments accidentally. I made it up at the end and did see clear results. They are easy to use. My teeth are a little sensitive. This did not worsen during treatment. I would recomend this as a less pricey alternative to the gel trays they sell at my dentist's office.

Comment: I ordered this product after reading a Consumer Reports article on whitening products. I was very happy with how fast they whitened up but my teeth became very sensitive. I discontinued after about 5 days due to the sensitivity. I will continue to use this product to whiten my teeth but I know I can't do it for too many days in a row. I have never had teeth sensitivity issues before. The sensitivity does go away after discontinuing use for a day or two.

Comment: I have never used any other whitening strips, so I don't think it would be fair for me to rave about how wonderful these are. I do see a difference after completing the 21-day treatment.
They are very thin, which makes them 'comfortable' to wear and virtually unnoticeable.
Warning: If you get this stuff on your fingertips, wash it off immediately... it EATS your skin.
I literally had to wear bandaids on my thumbs and couldn't figure out what was happening to the skin under my nails! It was the peroxide in these strips... and just a 'little' on your fingertips will do the damage!
Surprisingly, having said that... I didn't experience any gum irritation while using the strips. Tooth sensitivity was not a problem for me either.