Period After Opening (PAO)

The Period After Opening of a colour cosmetic is an measure of months, after which the cosmetic should be discarded, as its performance may be compromised thereafter by the prolonged exposure to air, and other parasites introduced to the cosmetic product from the day to day use by the consumer.

Pure mineral cosmetics do not carry bacteria, as there are no liquids, waters & oils or other chemicals, to taint the formulation. However, a consumer, may at times use the cosmetic against the suggested instructions (eg: by dipping a damp applicator directly into the minerals). Or licking a brush instead of using a primer, and so forth - This, you cant monitor nor control or measure.

The Period After Opening for all these loose mineral cosmetic powders are technically 36M. However it is more common to reduce this period for
a) safety reasons (listed above) or b) stimulate reorders faster & increase sales.

Cosmetic Periods After Opening:

All loose mineral powders - 36M or 18M

Mineral Gloss - 6M

Liquid Lipsticks - 6M

Mineral Mascara, Tints - 3M

The Period After Opening is a legal requirement for cosmetics sold in the EU. This information can be depicted by "PAO18M" or more commonly by the Jar Symbol followed by the months eg: 18M