Typically eyeshadow doesn’t expire for years (depending on how you store it and the humidity). I know people with 10 year old palettes that are still fine. I don’t think you have to worry about it unless you notice something off about it (texture, smell, mold, etc).
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The expiration date is normally listed on the back of the palette. There should be some logo/symbol with a number inside of it. I find most eyeshadow palettes expire after 12 months, but most usually last much longer. I think it’s just mandatory that they have an expiration date (at least in the USA?).
Typically eyeshadow doesn’t expire for years (depending on how you store it and the humidity). I know people with 10 year old palettes that are still fine. I don’t think you have to worry about it unless you notice something off about it (texture, smell, mold, etc).
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The expiration date is normally listed on the back of the palette. There should be some logo/symbol with a number inside of it. I find most eyeshadow palettes expire after 12 months, but most usually last much longer. I think it’s just mandatory that they have an expiration date (at least in the USA?).