ForMaxâ„¢ Hematoxylin produces blue stained nuclei and is used as a counterstain for sharp details. The formulation of ForMaxâ„¢ hematoxylin is based on Gill's modification and is free of mercury. Using this Hematoxylin formulation, the intensity of nuclear staining can be adjusted to achieve desirable results in both manual and in automated instruments. This counterstain provides excellent color contrast with peroxidase orAlkaline Phosphatase chromofluorescence. It also works well for use with both non-aqueous and aqueous media.