Product authorization. It is obtained from the ISP once per product. For cosmetics there are two routes depending on the category: health registration, or notification for hygiene, low-risk and air-freshener products. For medicines, registration, and considerably more demanding.
Control of each import. Cosmetics and their raw materials are subject to ISP import control, which means the cargo is not freely released from customs. A Customs Destination Certificate is processed, issued by the ISP, to move it to a warehouse with a valid health authorization.
That certificate authorizes the move, not the sale. Depending on the product, the authorization for use and disposal is then needed before it can be marketed. Confusing the two steps is among the errors that delay going on sale the most. See trade compliance.
Whoever brings in a line of twenty references needs twenty product authorizations. That defines the calendar of the whole project, not of the shipment.