The four-digit batch number on the snake venom eye mask package has nothing to do with the production date, so the production date cannot be known from the batch number. The shelf life of snake venom eye patch is three years, and it needs to be used as soon as possible after opening.
Snake venom eye mask can be divided into two types, one is red box, which has the functions of lightening fine lines, moisturizing and firming, and activating cells, and the other is white box, which has the functions of tightening eye bags, lightening expression lines and lightening dark circles. Choose according to your own needs.
Spa snake venom eye mask belongs to Japanese Spatreatment brand. According to the Japanese Pharmaceutical Affairs Law, cosmetics that "will undergo qualitative change after 3 years under normal storage conditions" are required to indicate the expiration date on the products. Spa snake venom eye mask can be stored in unopened environment for 3 years, so the package of spa snake venom eye mask does not indicate the batch number of production date.