Three years before opening and one year after opening.

According to relevant information from Kumi.com, under normal circumstances, the shelf life of an unopened Weather Pill set is three years. However, as long as the weather pill set is opened and used, the shelf life will be shortened to one year, that is to say, it must be used within one year from the beginning of use.

Tiantiandan is a brand in the cosmetics industry (trademark number: 14892164). The owner is Tiantiandan Cosmetics Co., Ltd. The brand was founded in Guangzhou City, Guangdong Province on May 21, 2016.