Six-reagent melanin and argentaffin granule staining kit, based on the reduction of silver nitrate to elemental silver. Melanin is a brown-black pigment normally present in the hair, skin, retina, iris and certain parts of CNS. Argentaffin granules are found in carcinoid tumors.

Seven-reagent kit for staining muscle and collagen fibers with a blue counterstain. It is also used for visualizing gametes, nuclei, neurofibrils, glial cells, keratins and intercellular fibrils. The kit may be useful for detecting collagen in smooth muscle cancer or diseases like cirrhosis.

Seven-reagent kit for staining muscle and collagen fibers with green counterstain. It is also used for visualizing gametes, nuclei, neurofibrils, glial cells, keratins, intercellular fibrils and for differentiation of smooth muscle fibers and collagens.