# What is the library loading concentration for NovaSeq 6000 Xp workflow?

The optimal library loading concentrations for the NovaSeq 6000 Xp workflow is 25-50% lower than for the Standard workflow.

* For the library concentration in the final ExAmp/library mix, refer to the [NovaSeq 6000 System Guide](https://support.illumina.com/downloads/novaseq-6000-system-guide-1000000019358.html).
* For the final loading concentration, refer to the [Denature and Dilute protocol generator](https://support-docs.illumina.com/IN/dnd-wizard/Content/dnd/landing.htm).

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