In industrial terms, the batch number (or batch code) is the designation, in numbers and/or letters, used to identify and trace a set of identical products that share certain characteristics of production (production time, production date, identification code, etc.).
Are expiration dates a hoax?
These dates aren't required by federal law (though some states require them) and don't necessarily indicate a product's safety (with the exception of baby formula). In fact, perishable products are usually safe to consume beyond their “best by” date if they've been handled and stored properly.26 mar 2020
What happens if you use expired makeup?
Expired makeup may become dry or crumbly, and you should never use water or saliva to moisten it, as it can introduce bacteria. Color pigments may not look as vibrant and powders may seem packed down and hard to use. Expired makeup can also start to harbor bacteria which can lead to: acne.1 jun 2020