Chemiluminescence in action! Luminol is used in crime scenes everyday to detect blood. This kit includes a special, simplified Luminol formulation which does not require a separate hydrogen catalyst. Simply re-hydrate and use with the simulated blood hemoglobin also included with the kit. This kit also includes two bottles of Luminol powder, one bottle of simulated blood hemoglobin, and instructions. Enough for several demonstrations or reinactments.