Highly active WestVision™ Peroxidase Polymer antibody conjugates have been added to our line of western blot detection reagents. These reagents are: Sensitive Convenient Economical WestVision™ Peroxidase Polymer antibody conjugates bind primary antibodies of mouse (WB-2000) or rabbit (WB-1000) origin with high affinity, producing sharp signal and low background in western blot detection. The conjugates are based on a new method of polymerizing enzymes and attaching these polymers to antibodies. The novel approach employed to form enzyme polymers avoids the use of large dextrans or other macromolecules as a backbone. Attaching these unique polymers to an antibody allows a higher density of enzymes to access a target with minimal interference. The result is an excellent signal-to-noise- ratio in western blot detection.