Immobilon® Block Noise Cancelling Reagents are designed especially for Western blotting applications. This family of protein-free, ready-to-use buffers has been optimized to reduce background levels when using chemiluminescence, fluorescent, or phosphotyrosine detection. Bløk buffers are ideal for use with Immobilon®-P Western blotting membranes and the SNAP i.d.® system, and are also compatible with standard Western blotting techniques.