Tear off unused trademarks. Have you ever paid attention to the shelf life of cosmetics? Still think that the shelf life of skin care products is 3 years and makeup is 5 years? If you still think so, then you really need to pay attention! Cosmetics have two types of shelf life, but you often don’t know the second one! You've been using expired cosmetics since you were little! Divided into shelf life and opening.

Cosmetics generally do not have an expiration date. They usually draw a small bottle with an opening on it and mark 12M, which means that it will be used within 12 months after opening. Some cosmetics only have an expiration date, but not every cosmetic.

Notes:

The shelf life mainly refers to: how long this product can be stored in an unopened state. The shelf life after opening the cap is the expiration date that beautiful girls start using after opening it, which is a completely different concept.