• Finest Control of the Ripening Process
• Longest Shelf Life
• Fewest Artifacts
• Reproducible Vibrant Staining

The most commonly used histological stain, hematoxylin is a natural compound
extracted from a species of tree found in Mexico and the West Indies. The
extracted compound is oxidized to produce hematein, the active staining
component of the hematoxylin stain. The production of histological staining
solutions is an art. only a few laboratories are capable of developing a stain
of reliable vibrance. At National Diagnostics we have gone one step further.
Our proprietary methods achieve the finest control of the ripening process,
resulting in the only commercially available Harris’ Hematoxylin with a full one
year shelf-life.