Japan has no shelf life, only the production batch number, but the production date can be reflected from the production batch number, and the shelf life can be calculated by adding the shelf life. The first number is the year (8 is 18, 5 is 15, and so on), followed by the month or date. How to check the shelf life in Japan: 1 Date of production in Japan is very rare. Generally, the production batch number will be listed, so the date will be chaotic. The following figures in some production batch numbers are also used to indicate the production date of this year, rather than coding in chronological order. Pay attention to the date Try to refer to the production date given by the store. The numbering sequence in the production batch number is not the same, and the code composition of the production batch number of different kinds of goods is also different. Pay attention to this. 3. According to Article 6 1 of Japanese Pharmaceutical Law, only "products that will deteriorate within 3 years under normal storage conditions" are marked with shelf life. If it is not marked, the shelf life of the product in unopened state is at least 3 years. Note that Japanese cosmetics generally do not indicate the date of production. Japanese law stipulates that only cosmetics with a shelf life of less than three years need to be marked with a special shelf life. Extended information: For example, the Japanese brand Meidi Kosi Meidi Kosi has a batch number of four yards, such as L902. The first number 9 stands for production 1999, and the English letter L is the twelfth word in the alphabetical order, which stands for production of 65438+ February, with a shelf life of three years, so the shelf life in 2002 will be 165438+ October.