Aleppo soap & natural care
What Is the Period-After-Opening Symbol on Cosmetics?
The period-after-opening (PAO) symbol is the small open-jar icon, printed with a number and the letter 'M' for months, that tells a shopper how long a cosmetic product is expected to stay in good condition once it's been opened and exposed to air. It's separate from a best-before or manufacture date — the PAO clock starts the day the product is first opened, not the day it was made or packaged, and it applies mainly to products where that distinction matters, generally ones with a longer overall shelf life before opening. Not every cosmetic carries a PAO symbol; it's typically used on products with a shelf life of 30 months or more from manufacture, where the pre-opening date alone wouldn't tell a shopper much about how long the product stays good after first use.
This is factual labelling information, not a claim about any specific product's performance.
Reading the icon: the open jar plus a number
The symbol looks like a small open cosmetic jar with its lid lifted, and the number printed with it — 6M, 12M, 24M and similar are common — states how many months the product is expected to remain in good condition after first opening. A jar marked 12M, for instance, is understood to be at its best used within twelve months of first being opened, regardless of how much time passed on the shelf, sealed, before that first use.
PAO vs. an expiry or best-before date
A best-before or manufacture-linked date measures shelf life from packaging, assuming the product stays sealed; the PAO symbol measures a separate window starting from first use, once the product is exposed to air, light and repeated handling. The two aren't interchangeable and can point to different practical windows for the same bottle — a product well within its pre-opening shelf life can still be past its PAO window if it was opened many months ago and used slowly.
Retail guidance for staff
For retail staff, the practical habit worth passing along to customers is simple: note roughly when a product is first opened, since that's the reference point the PAO number is actually counting from, not the purchase or manufacture date. This matters more for products used slowly over a long stretch — a jar or bottle that lasts many months — than for something used up quickly well within its PAO window regardless. Levant Direct's personal-care range includes products at different PAO windows depending on formulation, worth checking on the specific product's own packaging rather than assuming one figure applies across an entire category.
A shop that sells slower-moving personal-care lines — a seasonal gift item, or a specialty oil that doesn't turn over as fast as a core SKU — benefits most from paying attention to PAO windows, since that's exactly the situation where a product can sit sealed on a shelf for a long stretch before it's finally opened and its own clock actually starts.
Related questions
Does every cosmetic product have a PAO symbol?
No — it's typically used on products with a longer shelf life before opening (commonly 30 months or more), where the pre-opening date alone doesn't tell a shopper much about how long the product stays good after first use.
Does the PAO clock start at purchase or at first opening?
At first opening — not at purchase, and not at manufacture. That's the detail that trips people up most often.
Where can I find more on Canadian cosmetic labelling requirements generally?
Health Canada's cosmetics hub is the primary reference for cosmetic labelling requirements generally, including how dates and symbols like PAO fit into the fuller label picture (Health Canada — cosmetics).