Normal rabbit serum is a commonly used reagent in biological research for many applications. However, there are a variety of synonyms available in the market that can be used in place of normal rabbit serum while performing experiments. These synonyms include rabbit normal serum, rabbit control serum, regular rabbit serum, and untreated rabbit serum. These alternative names provide a clearer understanding of the rabbit serum used in the experiment while also emphasizing its normalcy. It is important to note that the use of normal rabbit serum, or its synonyms, is vital in many types of assays, including immunohistochemistry, enzyme-linked immunosorbent assay (ELISA), and western blotting, among others.