# Reagent Expiration Date Definition

The control software for all instruments will allow the reagents to be used **the day of expiration** thus they are still within their expiration until the end of that day.

For example: If the expiration date states 25-Oct-2022, the reagents are within Illumina's consumable warranty if used on 25-Oct-2022 and can be used until 26-Oct-2022.

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| *For any feedback or questions regarding this article (Illumina Knowledge Article #7148), contact Illumina Technical Support* [*techsupport@illumina.com*](mailto:techsupport@illumina.com?subject=Question%2FFeedback%20Regarding%20Illumina%20Knowledge%20Article%20#000007148%20-%20Instrumentation%20\&body=Dear%20Illumina%20Technical%20Support,%0D%0A%0D%0A)*.* |


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