Picrosirius Red Kit is designed for the selective staining of collagen fibers in paraffin or frozen tissue sections. The kit utilizes Sirius Red dye in a picric acid solution to enhance the birefringence of collagen when viewed under polarized light, allowing clear differentiation of collagen types and assessment of connective tissue structure. Commonly used in histology and research laboratories, the kit supports studies involving fibrosis, tissue remodeling, and extracellular matrix evaluation. Supplied with the required reagents for consistent, reproducible staining results and convenient workflow integration.