Crest Whitestrips Supreme Touch-Up Kit. 7 Pouches

Here's the scoop on the stuff. It really, really works and it works fast.

As others have mentioned, it does cause sensitivity, big time. But I found out that if I do it every other day, it is no problem. Everyday and twice a day like the instructions tell you will make you a miserable wretch. Also, if you have the strips on upside down, your gullet and gut will let you know how displeased they are.

First, how it worked on me. After the first day, which I did in two consecutive 30-minute treatments (you can do it that way or else wait a few hours in between treatments), I already noticed the difference. My bottom teeth were, for some reason, yellower than the top--plus the area around my gums were yellower than anything (I am a coffee drinker; I have no diseases or cavities and I don't smoke). When I finished both 30-minute treatments, my top and bottom teeth were the same shade, and my bottom teeth were not bi-colored anymore. When I woke up the next day, they were even a little whiter than before I went to bed. This whitens very quickly and you may not need the whole box -save some for later touch-ups.

Second, the sensitivity. After I finished my treatment (and after I realized the strips don't work upside down) I had no pain, and was thinking, "HUH. This is much nicer than that stuff in a tray the dentist gave me once." I went to bed right after my treatments... and at about 6:00 a.m. I felt a little sore in the jaw. At 7:00 a.m. it hurt a lot more, so I took 3 Advils and a Tylenol and went back to bed. It improved, but I still felt it some. I decided I was not going to do a treatment that day. The day after that, the pain was gone.

So I finally worked out a plan. For no pain (or very little pain) I could do one 30-minute treatment every other day. If I felt like I could grin and bear it, and had nowhere to go anyway, I did two 30-minute treatments every other day. I never put any strips on while I still felt pain, and it still worked wonderfully even though I didn't do it as frequently as the box directions say to. Doing it this way is still faster than buying the store-bought ones, which work very slowly.

Some things to think about:

1. If you need to get your teeth professionally cleaned, do it at least a week before you plan to use these strips.

2. Brush with a sensitive-teeth toothpaste twice a day for a week before you start treatment, and keep using it until you're finished with the treatments.

3. Do your treatment(s) every other day... or even space them out longer if you need to. You will still get whiter teeth than if you use store-bought concentrations.

4. The part of the strip that goes on your teeth is the smooth side--the side that peels off the plastic. The dry bumpy side does not have the gel.

5. If you have a wide smile, like Julia Roberts or Olivia Newton-John, you can either use more strips at a time and cover those back teeth (they stay on okay--just use your finger to fill in any crevices) OR you can alternate the side of your mouth you put the strips on. For example, Monday you can place the strips so they cover the front and right side of your mouth, and Wednesday you can place the strips so they cover the front and left of your mouth. The front teeth will always be covered, but the back teeth will get covered every other treatment--eventually becoming about as white as the front teeth.

6. Brush and floss 3 hours before your treatment, if you want to brush. DO NOT brush right before your treatment because your teeth and gums will kill!! I have heard of opening the pores of the teeth by brushing first, but it makes it so painful--even if you do it lightly. The rough side of a dry washcloth works well, though, to wipe them down and dry them (the strips stick best on dry teeth, anyhow). Conversely, you can use a Waterpic or Hydrofloss to blast your teeth with water to clean things up without roughing up your teeth and gums (and those things also help to rinse the gel out of your mouth when you finish).

Despite the caveats I listed, I gave it 5 stars (really 4.5) because this whitens better than any other treatment I've ever had--from the dentist or store either one--and the price is right. The strips are easy to use and stay put really well. The peroxide will not bother your innards, so long as you don't put them on upside down. Have some ibuprofen or acetaminophen handy for any pain, and enjoy your new smile.

I've only been doing a single set of strips every other day for about 3 wks. now. I didn't want to have to worry much about the tooth sensitivity that this strong peroxide version tends to cause. Still, it is indeed doing its job and I noticed the lightening by about the 3rd or 4th treatment. Also, I got a great deal on Amazon $55 w/ shipping for full 84 strip pkg.(42 top/bttm sets)! I'll probably just do half of them now and put the rest in the refer for a touch up maybe in a year or so, since I'm not into the super-white thing.

I didn't want to have to deal w/ the strips squirming around on the teeth so I picked up a couple of "poor man's dental night guards", i.e., football mouth guards*, to act as trays to hold the strips in place. When you buy the guards, just pop 'em in hot water for a few sec's and fit them to your teeth. Then, each time you use the strips, simply put the top strip on and the mouth guard over it, then then repeat for the bottom. Yep, you can wear both top and bottom at the same time w/ no problem. I don't find doing the treatment this way to be inconvenient at all.

*I recommend the Walmart kid's size football mouth guard, so they're not so bulky in your mouth. They're a lot more comfortable repurposed as night guards, for that matter, than the adult football guards. Note: you only want to wear one guard for that purpose. ;)

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This thhing came in a zip bag. worse of all, the strip is so thin and flinsy, it does not stay in place. Waste of money.

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These white strips are just like what you buy over the counter. I don't care for them as they are very slippery and fall off your teeth. My bottom teeth are a little crooked and the strips will not adhere to them.

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I ordered this product for a September 4th event, but never received the product.I attepted several times to contact Amy Swintosky, who sent the initial confirmation e-mail.She was very prompt in sending the tracking number, but when I did not receive the package....Amy disappeared.I have sent over seven (7) e-mails in regards to refunding my money since the item was not received, but no word from Amy or her company.

I have heard great reviews of this product, but buyer beware....SmileMedic is known to take your money and run.