Tyrosinase Assay Kit (Fluorometric) is a simple, one-step and reliable assay for monitoring tyrosinase activity with very high sensitivity. The assay uses a proprietary fluorogenic substrate that significantly increases its fluorescence intensity at 440 nm upon reaction with tyrosinase. The increases in fluorescence intensity at 440 nm is well correlated with tyrosinase activity. The assay kit is designed to be run with a fluorescence microplate reader.