# TruSeq Stranded RNA library preparation input requirements

**Can the TruSeq Stranded RNA kits generate libraries from FFPE samples or from only high quality total RNA?**\
The TruSeq Stranded mRNA kit supports high quality RNA (minimum RIN of 8) as input for sample prep as the protocol relies on a polyA tail purification step. The TruSeq Stranded Total Stranded RNA kit with both Ribo-Zero kit configurations (Human/Mouse/Rat and Gold) is compatible with FFPE samples.

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