Here's a good tip about expiration dates! Look at the back of your beauty products and you'll usually find this symbol:
It's called a PAO symbol, or period-after-opening. There's a number followed by the letter M. The number says how many months before it expires. Here's the example from Wikipedia:Once you open the product, take a marker and count the months indicated by the PAO. So if the symbol says 6M and you opened the product today, then write Nov 09 on the container. This really works because then you know when your product expires and also when to start shopping for a new one!
My eye cream, for example, expired this month. So even if I still want to use the little cream left in the tube, I had to throw it away. My makeup remover, which I love, expires next month so I'm wearing makeup every day this month so I can really finish it and it won't go to waste!
Knowing the expiration date is very important especially for products that are liquid (like foundation) or that has contact with your skin (like mascara) or you dip your finger in it (like creams). Your finger, no matter how much you've washed it, can still have germs and a nice jar of cream can become a breeding ground for bacteria. So dispose when the PAO says so!
Now go grab that marker...
The Beauty Writer