In accordance with industry standards, most cosmetics have a 36-month shelf life, meaning they remain safe and effective if unopened and stored correctly.
The expiration of a product is determined by its PAO (Period-After-Opening), which is indicated on the packaging as shown below:
These symbols identify the recommended period within which a cosmetic product should be used after it has been opened for the first time. The 'M' stands for 'month,' and the number specifies the number of months. For example, if the symbol reads 24M, it means the product should ideally be used within 24 months of opening.