The label "VSOP" on a Rémy Martin cognac bottle indicates that the cognac is a very superior old pale. The label indicates that the cognac has been aged for a minimum of four years before being bottled.
Cognac aged for a minimum of two years is labeled "Three Star" or "V.S." Cognac aged for a minimum of five years is labeled "Napoleon." Cognac is typically aged in oak casks, and most cognac is aged for one year to 15 months before being bottled. Cognac develops a smoother and more complex taste as it ages; older cognac is more expensive as a result.