What is PAO?

PAO stands for Period After Opening. It indicates the length of time a cosmetic product can be safely used after the consumer opens it for the first time.

The PAO is represented by the familiar open jar symbol followed by a number and the letter “M” (months) or “Y” (years), such as:

• 6M = safe for 6 months after opening
• 12M = safe for 12 months after opening
• 24M = safe for 24 months after opening

This symbol is defined in Annex VII of the Regulation.

Article 19 of Regulation (EC) No 1223/2009 states:

“Indication of the date of minimum durability shall not be mandatory for cosmetic products with a minimum durability of more than 30 months. For such products, there shall be an indication of the period of time after opening for which the product is safe and can be used without any harm to the consumer.”

When PAO labeling is not relevant?

– products with durability under 30 months,
– single-use products,
– products that cannot physically be opened,
– formulations intrinsically hostile to microbial contamination.

PAO labeling is an essential component of cosmetic product safety in the European Union. By requiring manufacturers to communicate how long products remain safe after opening, Article 19 of Regulation (EC) No 1223/2009 supports both consumer protection and responsible product use.

Photo source: AI ChatGPT