What is the shelf life of unopened cosmetics?

I know the details of the shelf life of certain makeup products that you have already used. But, say you stock up on items because it is on sale. Is the shelf life the same? Or can you keep it longer since it is unused and unopened?What is the shelf life of unopened cosmetics?
The shelf life starts from the time you open the cosmetics in most cases till any specific expiry date is not mentioned.What is the shelf life of unopened cosmetics?
Ok, well it all depends on the product. Once you open it:





* 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





If it is unopend, remaining sealed it can last for however long you want it too, as long as you are storing it correctly, room temperature.