How long is the shelf life of Tianqidan?

Shelf life of Tianqi egg. If it is recommended to use it within one year after opening, the skin care products after opening are often exposed to air, which is easy to cause oxidation and will reduce the use effect of skin care products.

In addition, whether it is skin care products or cosmetics, the shelf life is three years without unpacking. It is not recommended to use it unopened for three years, because the ingredients will change to a certain extent, and it will cause skin irritation when used on the skin, which not only has certain use value, but also causes different skin problems.