Biotin-XX tyramide can be used for tyramide signal amplification (TSA), which is an enzyme-mediated detection method that uses horseradish peroxidase (HRP) to generate high-density labeling of a target protein or nucleic acid in situ.Also see 9689c5aa-6556-4b3c-b5d1-1e693715ba07's Biotin Tyramide Amplification Kits.