cosmetic過期了嗎

Basically there are two options:
- Expiration date will be reached first:

- PAO will be reached first:


Example: expiration date is printed on a package, e.g. Exp.:05/12, and PAO is also printed: 18M. Such way, in any case you should stop using this cosmetics after 05/12 or in other words, May 2012 (if expiration date is not specified, please feel free to use the cosmetic calculator to find it via the batch code).
But if PAO will be reached before the expiration date, this also can mean your product has been expired; for example, if you opened this cosmetic product on 16.02.2011, PAO will be reached after 6 months (6M), i.e. 16.02.2011 + 6 months = 16.08.2011; on 16.08.2011 your product will be expired and you should not wait for expiration date.
Other example: you opened this makeup on 25.02.2012; PAO will be reached on 25.08.2012, but expiration date (05/12, May of 2012) will be reached first, and you should throw out this cosmetics after May 2012.


How long can I keep my cosmetics and be in safe?
Generally speaking, you can keep your cosmetics unopened up to 3 years. This is quite general term, and can depend from product and company produced it.
Please note: as soon as you opened it, you should also maintain the PAO.

General period after opening is:
Perfumes, perfume, edp – up to 3 years;
Powders (including blush, eyeshadows powdery texture) – 1 to 3 years;
Foundation in a jar or a cream powder – 1 to 3 years;
Liquid tone means (in tubes or jars with dispenser) – 1 year;
Nail polish – 1 year;
Sun cosmetics – 1 year (but no more than one season);
Lipstick, lip gloss – 1 year;
Pencil (Eye, Lip) – about 1 year;
Skin care products (hydrating cosmetics, wrinkle, eye contour) in a sealed packet with the pump – about a year, in a jar – from 6 to 10 months;
Solid eyeliner and eyebrow pencil – from 6 to 8 months;
Bronzing – 6 months;
Mascara – 3-6 months;
Liquid eyeliner – from 3 to 4 months;
Natural/Organic products – up to 6 months.
Please note that natural and organic cosmetics, which do not include preservatives, can be stored up to 6 months after opening. Reason: absence of preservatives leads to a proliferation of bacteria.