There are some beauty products that never seem to run out. However, although a product may seem to last forever, it may not be good forever. In fact, expired cosmetics do more harm them good.
Every beauty product has an expiry date, whether it is 2 years, 1 year or just 4 months! Just like groceries, cosmetics can become riddled with bacteria, making them unusable.
Sadly cosmetics don't come with a use by date, instead they just have a symbol indicating how long they should be kept for. So to make sure your makeup never goes moldy, apply a small label to the bottom of your product and date it within a couple of days of purchase. This way, you'll always know how long you've been using a product and when its time to toss it!