How long does it take to use up the liquid foundation after opening

For girls who love makeup, liquid foundation is a must-have product in summer, because it is easier to use foundation when the weather is hot, and there is no need to worry about sweating on the skin causing the powder to stick or float. However, after opening the liquid foundation, it is best to use it up within about a year. Some liquid foundations can last about 12 months. After the shelf life, it will deteriorate and cannot be used.

How long is the shelf life of liquid foundation?

Generally speaking, the shelf life of liquid foundation before opening is different from that after opening. There is usually a standard expiration date on the packaging of liquid foundation, which can be one, two or three years, which refers to the unopened shelf life. After opening, the shelf life of liquid foundation is generally 6 to 12 months. If it is not used up within this time, it is best not to use it.

Can I still use the expired liquid foundation?

It is best not to use it. After opening the liquid foundation, it is generally best not to use it after twelve months. After all, liquid foundation is a hydrogel or essential oil substance. When exposed to the air, it will come into contact with the air and various microorganisms in the air, which is more conducive to bacterial growth. The longer it is applied on the face, the more likely it is to cause damage to the skin.

What are the disadvantages of expired foundation?

Liquid foundation, like other cosmetics, contains some biologically active ingredients. If it is exposed to air, high temperature, sunlight, and light for a long time, it is easy to undergo chemical changes, produce some products that are harmful to the skin, or the active ingredients will be evaporated. The active ingredients and nutrients in liquid foundation will gradually degrade during use, which will cause potential harm to the skin. When applied to the skin, the moisture and bonding degree of the liquid foundation will change, greatly reducing its effectiveness.

How to tell if liquid foundation is expired

Liquid foundation is in liquid form, so it is easy for bacteria to grow after opening. It usually only has a shelf life of six months to one year. After one year, if you find that the color of the liquid foundation has changed, or it has an odor, it means that the oil composition in it has changed, proving that it has expired.

The magic of expired liquid foundation

Unlike other expired skin care products or cosmetics, expired liquid foundation cannot be used to care for the skin or hair of other parts of the body, nor can it be used as a cleaning product. Therefore, once the liquid foundation is opened, it is best to use it up within the shelf life, otherwise it will have to be thrown away without hesitation.