What is PAO (Period After Opening)?
Most cosmetic products are made to last a long time. But it is not always clear for consumers just how long is ‘a long time’.
From March 2005 the new PAO symbol was introduced that shows the number of months within which the industry, in conjunction with European Union guidelines, recommends a product remains usable. This period is referred to as the Period After Opening (PAO).
The lifespan is designated in months (M) and appears as follows:
[12M] = 12 months
[24M] = 24 months
Information concerning the lifespan of your product will appear on all products except:
- products which only last 30 months or less as these products already carry a ‘best before’ date
- single use products (e.g. samples, hair colorants etc.)
- products contained in packaging that prevents contact with the external environment (e.g. aerosols)
- some very long-lasting products which cannot deteriorate over time in a way that affects their safety.
Useful Product Tips
Always read the instructions carefully; including any warnings for use.
- Keep lids on products when not in use and use the product within the recommended timeframe (if a date or PAO is shown on the product).
- Avoid storing your products in direct sunlight or near sources of heat and chose dry, cool (but not freezing) storage areas where possible.
- Never dilute products or mix with other products (unless directed to do so by the product instructions).
- Apply cosmetic products with clean hands or an applicator and routinely wash all applicators thoroughly with soap, detergent or a mild shampoo.
- Allow applicators to dry completely before use.
- Avoid sharing your personal cosmetic products with another person.
The lifespan is designated in months (M) and appears as follows:
[12M] = 12 months
[24M] = 24 months
Information concerning the lifespan of your product will appear on all products except:
- products which only last 30 months or less as these products already carry a ‘best before’ date
- single use products (e.g. samples, hair colorants etc.)
- products contained in packaging that prevents contact with the external environment (e.g. aerosols)
- some very long-lasting products which cannot deteriorate over time in a way that affects their safety.
Useful Product Tips
Always read the instructions carefully; including any warnings for use.
- Keep lids on products when not in use and use the product within the recommended timeframe (if a date or PAO is shown on the product).
- Avoid storing your products in direct sunlight or near sources of heat and chose dry, cool (but not freezing) storage areas where possible.
- Never dilute products or mix with other products (unless directed to do so by the product instructions).
- Apply cosmetic products with clean hands or an applicator and routinely wash all applicators thoroughly with soap, detergent or a mild shampoo.
- Allow applicators to dry completely before use.
- Avoid sharing your personal cosmetic products with another person.















