How long is the shelf life of foundation?

It is women’s nature to love shopping. Many female fans will buy some beautiful clothes and a lot of cosmetics. After buying, some of them will always be thrown aside, and some cosmetics will expire. For example: different brands of foundation have different shelf lives. It mainly depends on whether it is opened or unopened. Generally, the shelf life of liquid foundation is three years, which refers to the unopened state.

Correct use of foundation:

1. Prevent high temperature in the air: High temperature and air will destroy the chemical substances in cosmetics. Therefore, tighten the bottle cap after use to prevent the cosmetics from

2 Oxidation causes product deterioration.

Avoid bacteria entry: wash your hands before use and close the bottle cap tightly after use. It is not advisable to take out cream samples directly. It is best to use a scraper or cotton swab. Some cream samples or cosmetics have isolation films in the bottle caps. Do not remove them as they provide extra protection. Do not put the taken out cream samples back into the bottle. Do not share cosmetics with others, especially mouth and eye makeup.

3 Keep away from the bathroom: Except for cleaning products, skin care products and cosmetics should not be placed in the bathroom. Commonly used cosmetics should not be placed in the bathroom. The more frequently used ones can be placed on the dressing table, while the less frequently used ones can be placed in the drawer. Counties are rushing to buy, don't hoard products. Beauty products that are not used in the season should be used up as soon as possible to avoid spoilage.

4. Clean regularly: Makeup tools, such as sponge brushes, etc. should be kept clean and cleaned regularly to avoid contamination. In particular, the sponge puffs of loose powder and pressed cake should be kept clean and no sweat stains should be left on them. To clean powder puffs, eyebrow brushes, and eyebrow pencils, soak them in neutral detergent for 10 minutes, then put them under the faucet and rinse along the tips of the hair. Then, gently pinch the bristles to remove excess water, place a towel on the brush and dry it in the shade.

Ensure the temperature: Skin care products should be placed in a dry and ventilated place, and should not be placed in a humid, high temperature or direct sunlight environment.

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.