Eosin-Y is a fast-acting, alcoholic counterstain that provides excellent delineation of cytoplasmic components. The color contrast between the nuclei and cytoplasm is unmatched. Various shades of red and pink differentiate muscle, red blood cells, and connective tissue. Strict quality assurance guarantees product consistency and longevity. When you add Eosin-Y to Phloxine, it produces a brighter reddish hue and dramatic differentiation of cytoplasmic color.