WHAT IS THE SHELF LIFE OF THE SERUM?
After opening, the serums should be used within 6 months. Unopened, the products have a shelf life of at least five years.
https://www.m2beaute.com/en/eye-care-faqs/m2-beaute-eyebrow-renewing-serum/what-is-the-shelf-life-of-the-serum