The marketed cosmetics should have been available on the market for no less than three years. This can be demonstrated either by continuous sales of a single product for three years or more, or by cumulative continuous sales of multiple products over a period of three years or more. For products that were launched earlier, the reliability and traceability of the relevant information should be thoroughly considered.
In addition, the products must have sufficient usage quantity. In principle, if end-user retail sales data (i.e., actual consumer purchases) are used, the cumulative sales volume over three years should be no less than 10,000 units, with annual sales of no less than 3,000 units. If indirect sales data are used, such as factory shipment volumes from cosmetic manufacturers or distributor sales volumes, the cumulative sales volume over three years should be no less than 100,000 units, with annual sales of no less than 30,000 units.