You’ve probably seen it hundreds of times… and never thought twice about it.
That small symbol on the back of your shampoo or lotion bottle—usually near the barcode—looks easy to ignore. But once you know what it means, you’ll never overlook it again.
It’s called the “PAO” (Period After Opening) symbol.
The little open jar icon with a number inside—like “12M” or “6M”—actually tells you how long the product is safe to use after you open it. So if it says “12M,” that means 12 months from the moment you first use it.
And here’s the surprising part…
Most people keep using these products long after that time has passed—without realizing it. Over time, ingredients can break down, bacteria can build up, and the product may not work the way it’s supposed to anymore.
That tiny symbol isn’t just random—it’s there to protect you.
So next time you pick up a bottle, take a closer look.
Because something that small… can make a bigger difference than you think.
