I recently found my makeup primer that went missing for the past few months. I should have known better not to use it because of the funny smell, but I was overjoyed to be reunited with my makeup primer. Two hours later, my face broke out and little bumps emerged everywhere! The moral of the story is that cosmetics have expiration dates too! Now throw out all the expired products in your makeup bag and go shopping!
Here is a general rule of thumb on makeup and their shelf life:
Oil-Free Foundation: 1 year
Cream or Compact Foundation: 18 months
Concealer: 12-18 months
Powder: 2 years
Blush and Bronzer: 2 years
Cream Blush: 12-18 months
Powder Eye shadow: 2 years
Cream Eye shadow: 12-18 months
Eyeliner: 2 years
Liquid eyeliner: 3-6 months
Mascara: 3 months
Lipstick: 2 years
Lip liner: 2 years
Lip gloss: 18-24 months
Nail Color: 1 year