Like food and medicine, beauty products don’t last forever. Cosmetic chemists suggest looking for three key things to determine its expiration date and suggest ways to maintain its shelf life.

Expiration dates are there to provide a general timeline for best usage. If you’ve properly stored an unopened product, you ...

Navigate the world of food expiration by diving into the subtleties of "sell-by" versus "use-by" dates — and discovering foods with distinct use-by recommendations.

For FDA-approved sunscreens, consumers can expect to find expiration date labels printed right on the packaging with an "EXP" marker followed by the month and year.

Unfortunately, cosmetics are not required to have expiration dates, says Homer Swei, PhD, senior vice president of Healthy Living Science at the Environmental Working Group.

How to find expiration dates on products. Cosmetics are not required to have expiration dates printed on labels in the US. The good news is that many products do anyway. ...

This date tells you how long the product is good for if it isn’t opened. While the product may still work after this date, it may be less effective. The other hair dye expiration date is usually ...