Fixed tissue and FFPE RNA purification kits allow the extraction of material for downstream processes as RT-PCR and sequencing. Such kits can overcome the cross-links and modifications that may be found in formalin-fixed paraffin-embedded (FFPE) tissue samples. Streamlined protocols and ready-to-use reagents can help with work in various aspects of gene expression, such as with varying tissue types, disease states, and more. Spin column, magnetic, and automation-friendly formats are also available.