First time me, or google, heard about an expiry date printed on a perfume bottle. AI Overview Most perfume bottles do not have a traditional calendar expiration date printed on them. Instead, you may find a Period After Opening (PAO) symbol (an open jar icon with a number like 24M for 24 months) or a batch code used to track the manufacturing date What is Printed on the Bottle PAO Symbol: A tiny open jar drawing with a number and an "M" (e.g., 36M), showing how many months the scent is best used for after the first spray. [1] Batch Code: A small laser-etched or ink-stamped series of numbers and letters on the bottom or side. You can type this code into online cosmetic databases to find the exact production date. [1, 2]
