REV generally refers to the version. Generally, the production date and warranty status can be checked by sn on the label and after-sales.
Extended data:
Topix Replenix is an "antioxidant brand of green tea", which is rooted in professional doctor channels and cooperates with 30,000+doctors around the world. All products are made of pharmaceutical-grade raw materials and have FDA certification. It has 23 patents, including micro-polymer delivery system and slow-release technology, and it is also the only brand in the world with a 2-year patent on dimensional C stability.