Crest 3D Whitestrips Teeth Whitening Strips

I've worn Crest white strips about once a year for decades. I had my teeth whitened professionally after my normally white teeth inexplicably become sort of grayish tinted when I was in my late twenties. (And yes, I know they say you can't whiten gray teeth but I guess I'm an exception). I then started using the Crest White strips annually to maintain my white teeth. I had always been happy with the results until last year when I got a dud version even though it was one of the more expensive versions and it said to only use it once a year, whereas the usual advice on the Crest White strips is that you can use them twice a year. I took the once a year recommendation to mean that it would be a stronger formulation then the typical white strips. It was actually my worst experience with white strips by far. There was very little improvement. So this summer I bought white strips with some trepidation, even though this version has a bazillion five-star reviews. I was wondering if it was the white strips that I had problems with last year, or was it maybe that I was getting older and my teeth just wouldn't get as white. Well, the answer is that my teeth will get white with good quality white strips like these 3D professional effects strips. The two days of the more powerful whitening strips that are in the package does a good job of jump starting the whitening. My results were excellent and the results are maintaining well 6 weeks after I finished the strips. Details: I don't have much problem with sensitivity but if I do, I try to brush more gently, and I might skip a day. I use a whitening toothpaste in the morning and a gentle toothpaste at night. I don't use mouthwash for the duration. I avoid food and drinks that stain my teeth except for coffee in the morning. You might want to do some research because a lot of food and drinks that you might not suspect actually do stain your teeth. An example is some clear sodas. Even some toothpastes stain your teeth. You can actually find that statement on some very ordinary, major brand, mainstream tubes of toothpaste! I wait 30 minutes after eating or drinking in the morning and then floss and brush my teeth. I then wait a solid 30-40 minutes before using the white strips. After I've used the box of white strips, I go back to using the Crest whitening mouthwash and the same whitening toothpaste in the morning / gentle toothpaste at night routine. In my personal experience, the mouthwash doesn't do much to whiten teeth, but it is very helpful in maintaining white teeth. Be sure to follow the directions and don't eat or drink for 30 minutes after you have swished with the mouthwash for 1 minute. Try to swish with some water afterward if you do eat/drink foods that stain teeth. Maintain brushing twice a day. This really is a difference-maker for me.