How long is the shelf life of toothpaste? Can you use toothpaste that has expired?

When buying toothpaste for adults, you can choose one containing fluoride, because fluoride toothpaste can prevent tooth decay and has a great effect on dental health. So how long is the shelf life of toothpaste? Can toothpaste still be used after it expires?

What is the shelf life of toothpaste?

It could be 1-3 years. Toothpaste has a shelf life. The product's limited use date, production date and production batch number are marked on the lid and end of the toothpaste tube. Because the chemicals contained in toothpaste will react after being stored for a certain period of time, especially the opened toothpaste, it is best to use it up within one or two months. The longer a tube of toothpaste is used, the more opportunities it has to be exposed to the air, and the greater the chance of contact with bacteria.

Can I use expired toothpaste?

Toothpaste should not be used after it has expired because it contains many chemical substances. The ingredients in expired toothpaste have become ineffective and its ability to remove stains has been greatly reduced. If you continue to use it, it will cause certain damage to your teeth and may even cause allergic reactions. Therefore, it is not recommended to use expired toothpaste.

What is the use of expired toothpaste?

1. Wipe glass: Expired toothpaste can be used to wipe glass. For example, if there is residual makeup on the makeup mirror, use a rag dipped in toothpaste to wipe it, and the stains on the mirror will be wiped clean. This method is also suitable for cleaning watches. Using toothpaste to clean the watch mirror can not only make the watch mirror shiny, but also make the fine lines on the watch surface smooth.

2. Remove tea stains: If you like to drink tea or coffee, then tea stains or coffee stains are inevitable on your teacups at home, and it is very troublesome to remove them. At this time, you might as well use toothpaste. Squeeze out a soybean-sized amount of toothpaste and evenly apply it on the wall of the teacup. After repeated scrubbing, the tea stains or coffee stains will be quickly removed.

3. Remove fishy smell: Every time after washing fish, there will always be an unpleasant fishy smell on your hands. Even if you wash your hands repeatedly with soap, it is difficult to cover up the fishy smell. After washing your hands, apply toothpaste on your hands and rub them, then rinse with clean water, and the fishy smell will disappear.

4. Repair scratches: After wearing a watch for a long time, there will be slight scratches on the surface, making the dial look cloudy. Apply a little toothpaste to the watch mask and wipe it repeatedly with a soft cloth to remove the small scratches. Toothpaste can also smooth out the scratches on the surface of a CD. Use a soft cloth dipped in a small amount of toothpaste to slowly rub the scratches, circling from the inside to the outside. After about 20 minutes, the scratches on the disk will become much lighter.

5. Washing clothes: For housewives, the most difficult clothes to wash are the collars and cuffs of shirts. These places cannot be cleaned by washing machines at all, and can only be rubbed by hand, but even then it is difficult to wash them clean. However, if you soak the clothes when washing them, apply a layer of toothpaste evenly, brush them lightly with a discarded small toothbrush for about 1 minute, and then rub them by hand or wash them in a machine as usual, they will be washed extra clean.

Can toothpaste relieve itching?

Toothpaste can relieve itching. This is because after being bitten by a mosquito, the mosquito leaves formic acid in the human body, causing itching and redness. Toothpaste contains calcium carbonate or calcium bicarbonate powder, which is alkaline and has the effect of neutralizing formic acid, so toothpaste can effectively relieve itching. Secondly, toothpaste contains mint ingredients, which can cool the itchy area and inhibit the sensation of nerve endings, thereby achieving the purpose of relieving itching.