The Davidson Marking System® is the original tissue marking system, first developed for the Mohs technique, currently suitable for a variety of laboratory applications requiring orientation of tissue specimens. These specifically formulated tissue dyes:
- are suitable for both fresh and frozen tissue samples
 - can be used pre- or post- fixation
 - adhere to tissue throughout processing
 - are clearly visible under the microscope
 - can be easily distiguished from each other
 - are economical and space-efficient
 
