Eosin-Y is fast acting, alcoholic counterstain which 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. Phloxine, when added to Eosin-Y, adds a brighter reddish hue and a more dramatic differentiation of cytoplasmic color.