noun
genuine product; official product; OEM accessory
Refers to a product made by the original manufacturer, especially accessories or parts designed for a specific main product (e.g., phone cases, car parts). Contrasts with third-party or compatible products.
スマホのケースは純正品を買ったほうが安心だ。
It's safer to buy a genuine case for your smartphone.
このプリンターには純正品のインクを
Please use genuine ink for this printer.
正規品 emphasizes authorized distribution, while 純正品 stresses the manufacturer origin.
Compound of 純正 (genuine, pure) and 品 (product, item).