How long can the foundation be unsealed?

Liquid foundation contains bioactive ingredients and chemical ingredients, after the expiration of these ingredients will be qualitative change, cosmetic processing plants tell you not only can not achieve the desired effect, but also harm the skin!

1. Use liquid foundation

In general, the foundation should be used up within 12 months of opening, and whether it has passed the shelf life after 12 months, it is recommended not to use it as much as possible!

Because the foundation is a hydrocoagulable or essential oil substance, it is exposed to microorganisms and dust in the air after opening, which is easy to breed various bacteria, and the effective nutrients inside will also be volatilized. The longer the foundation is opened, the less effective it is, and the potential harm to the skin.

Because the foundation is a hydrocoagulable or essential oil substance, it is exposed to microorganisms and dust in the air after opening, which is easy to breed various bacteria, and the effective nutrients inside will also be volatilized. The longer the foundation is opened, the less effective it is, and the potential harm to the skin.

2. It expires less than 12 months after opening

If the foundation has expired within 12 months of opening, it should not be used in principle.

If you have to use it, it can be determined according to the specific situation, only about a week after expiration can be used appropriately, and it will not be too harmful to the skin.

The advice, of course, is not to use it.

3. How long is the shelf life of liquid foundation

There are two types of shelf life for liquid foundation:

Open:

After opening the foundation, the shelf life will be greatly reduced to 6-12 months, which is calculated from the opening date.

At the same time, this time must also ensure that the foundation itself within the shelf life!

Unopened:

The shelf life of unopened liquid foundation is generally 1-3 years, and the shelf life of different brands may vary, depending on the production date and shelf life indicated by the product.

In SUMMARY:

Whether the foundation is expired is divided into open and unopened two cases, expired foundation can not be used again, will cause harm to the skin!