There is no damage to the hair with expired shampoo

Shampoos all have a certain chemical composition. Expired shampoo because the composition of the shampoo has changed. It cannot be used as a shampoo or hair conditioner. It can even cause hair loss. So it can't be used.

But you can wash towels and bathe pets.

I haven't tried shampoo until it expires. It's better not to. Something expires. The quality will vary somewhat. Consider doing the laundry.

*Shampoo expires**. The shelf life of shampoos is generally two to three years, and shampoos can last for two to three years as long as they are not opened. Once opened, the shelf life of the shrouded Zen hair lotion will be greatly reduced, and it is generally recommended to use it up within half a year.

Shampoos expire because the chemicals they contain, such as land-based surfactants, fail over time and weaken their ability to cleanse the scalp. In order to maintain the cleansing effect of the shampoo, it is recommended to use it within half a year.

Whether the shampoo can be used after expiration is mainly according to its type, some shampoos containing sulfur or preservatives can be used for a period of time after the expiration date, and if it expires for more than three months, it is not recommended to use it. One of the commonly used ingredients in shampoos is water and the other is a surfactant. There are also some acidic ingredients, as well as some ingredients for hair care and shampooing.

After a long time of expiration, its active ingredients will be poor, and its cleaning ability will be poor.

It seems that although some shampoos contain preservatives and can be used for a longer period of time, doctors still recommend that shampoos are best used within the expiration date. If the shampoo expires, it can damage our head**.

The shampoo contains a variety of chemical ingredients to improve your hair smoothness, shine, dandruff, etc., if it expires, the chemical components will also change and become harmful ingredients to the human body, which will enter the body through **, endangering your health, it is recommended not to use expired shampoo. At the same time, it is not recommended to always use one brand of shampoo, and changing different shampoos frequently can reduce the occurrence of diseases.

Shampoo is a chemical preparation, if it expires, it will deteriorate, ** allergies, etc., if you have no symptoms after using it, generally don't worry, accidentally use expired shampoo, generally there is no big problem. It doesn't affect your body, you can just wash your hair a few times with water. When you use it in the future, you must pay attention to this problem, and do not continue to use expired products to avoid harm to the body.

Don't use it, if it's expired, there must be some harm, otherwise there is no need to set an expiration date.

Expired shampoos may cause head allergies, itchy scalp, hair loss and other hazards, so be careful about the shelf life of the shampoo, and once the expiration date has passed, don't continue to wash your hair.

Once the shampoo expires, it will not only fail to shampoo and care for the hair, but may also cause damage to the hair and scalp. Shampoo contains certain chemicals that, once expired, are likely to cause harm to the body.

Expired shampoo cannot be used to wash hair and can be used for other purposes:

Washing clothes: Shampoo has the effect of cleaning dirt, so expired shampoo can be used to wash clothes, especially the collar or cuffs of clothes, which can be scrubbed with shampoo.

Flush the toilet: If the toilet at home has a peculiar smell, you can pour the expired shampoo into the toilet and then brush it, which can play a good cleaning role and eliminate the odor brought by the toilet, killing two birds with one stone.

Take care of the house: Pour the shampoo into clean water, stir well, then soak the rag in the water, wring it out, and then use the rag to scrub the table or floor, you can have a better cleaning effect. But after cleaning, be sure to scrub the floor with clean water to prevent falling.