Widely used in histopathology, this stain kit provides clear differentiation of cellular components in tissue sections. Hematoxylin stains cell nuclei blue-purple by binding to nucleic acids and nuclear proteins, enabling visualization of nuclear morphology, chromatin patterns, and mitotic figures. Eosin stains cytoplasmic elements and extracellular structures in varying shades of pink, highlighting cytoplasm, collagen, red blood cells, and muscle fibers. Together, they allow pathologists to assess tissue architecture and detect abnormalities such as inflammation, necrosis, and malignancy. Commonly applied in diagnostic biopsies, cancer research, and routine tissue examination, the stain is essential for accurate histological evaluation in both clinical and research settings.