Polymerase chain reaction (PCR) is a molecular technique used to amplify targeted DNA in vitro. PCR technology is a kind of qualitative analysis of genes. In biomedical research, it is necessary to detect not only the presence of the gene, but also the number of templates in the sample before amplification. Therefore, it is necessary to conduct quantitative detection of PCR, namely fluorescence quantitative PCR (qPCR). Yeasen provides multiple reagents related PCR and qPCR, including master mixes and kits. PCR master mixes provided by Yeasen have two types, including no-dye and with-dye. qPCR related reagents from Yeasen are developed based on two principles, including TaqMan probe based and Dye based.