Crest Whitestrips Premium Plus,10-Day Dental Whitening Formula System, 40 Strips

All I have to say about this is that it does the job.
My teeth started to turn white within the 3rd day of using the strips.

I do have to warn you that if you have sensitive teeth you will suffer a lot.

The pain is incredible bad.. I have sensitive teeth.

The pain last all day, so eat slowly and try not to eat hot or cold stuff..

Try eating at room temperature if possible.

With today's economy I can't understand how anyone would want to waste their money.

Here's the thing, instead of rinsing your toothbrush in water before you apply your tooth paste to your brush head, dip it in 3% peroxide (everyday over the counter kind). Don't shake off the excess; brush as usual.
Bonus: brush your tongue, walls and roof of your mouth, and you don't need mouthwash either!

Your teeth will be whiter and pain free.

Obviously do not swallow and rinse well.

I have used similar product from Crest, the 7 strip (total of 14 with half hour use every day), and had no problem specially it was much cheaper even though I bought it at Walgreens. However this new supposedly supper duper product caused severe pain after just one use (2 strips back to back total of 1 hour). It took about 3 days to recover from pain (both gum and teeth)and after 10 days my teeth are still sensitive to cold or hot food. I should have used the same old product that I had good experience with, big mistake!

I have used this product for a long time. It's easier than the trays. Use it and after a few months use it again. I use it to brighten up if I'm headed out to a night event, I put the strips on while I'm getting ready. It's so simply!

I have been using these for five days now and I have noticed an incredible difference!! I was getting to a point of embarrassment when smiling, my teeth had yellowed a lot over the years, and they were never really white to begin with. Now when I smile, I notice my teeth are much brighter and whiter! I also bought some Sensodyne ProNamel toothpaste and brush for one minute after removing the strips and my teeth have had very little sensitivity! I would recommend this product!