About 20 dollars to 40 dollars
Yes they do. I have listerine whitening strips that are expired. There should be something on the box.
considering whitening strips contain chemicals there is nothing natural about them.
I always take care of my teeth, and like to keep them white all the time. I highly suggest you buy whitening strips which can be found in any drugstore. I recommend crest white strips. I have used crest white strips a few times and after you're done, they leave your teeth extremely white. It also saves money, I mean going to a dentist to whiten teeth can cost hundreds even thousands. However whitening strips range from $20-$40, saves the money. And after that you can purchase whitening toothpaste to maintain the whiteness.
It is recommended to avoid smoking after using whitening strips as smoking can stain teeth and counteract the whitening effects. It is best to wait at least 24 hours after using whitening strips before smoking to maximize the results.
They are made out of mint
Crest Whitening Strips are used as a popular alternative for whitening teeth. The ingredients include: Water, Glycerine, Hydrogen Peroxide, Carbon 956, Sodium Hydroxide and Sodium Saccharine.
Yes, you can.
I like Crest Whitestrips Seals better
up to $30
Tooth whitening kits can come in a variety of price ranges. The cost of an over the counter tooth whitening kit can range in price between $20 to $80.
There are plenty of ways to whiten your teeth, but the most cost effective way is using strips. These cost very little and are proven to be 100% safe for your teeth.
I don't think this is ok, girls at that age are young enough to improve their teeth and using whitening strips isn't a good habit to start.