BLUESTAR Magnum is a super-strength formula for searching minute blood droplets or stains on washed objects. Perfect for forensic lab technicians but recommended also on crime scenes. BLUESTAR is a blood enhancement reagent whose purpose is to reveal blood stains that have been washed out, wiped off, or are invisible to the naked eye. This product is intended for crime scene investigators. Based upon chemiluminescence, the unique formula qualifies it as the most effective blood reagent available on the market for crime scene, as well as forensic lab use. BLUESTAR Forensic does not alter the DNA of the revealed blood which allows for subsequent comparison. BLUESTAR is non-toxic and easy to prepare and apply. Simply dissolve 3 BLUESTAR® Forensic tablets of catalyst in the lightening solution of the bottle and spray on any surface.