BioMaster HS-Taq PCR-Color (2×) kit contains 2× BioMaster HS-Taq PCR-Color reaction mix, 50 mM MgCl₂ and sterile water. BioMaster HS-Taq PCR-Color (2×) reaction mix contains all components needed for conventional hot-start PCR (except for DNA template and primers): hot start Taq DNA polymerase, dNTP mixture, 2× PCR buffer, Mg²⁺ and marker dyes.

The mix is optimized for efficient and reproducible PCR. Its components increase stability of HS-Taq DNA polymerase during the reaction. BioMaster HS-Taq PCR-Color (2×) reaction mix is chemically stable, inert and does not interfere with optimal annealing temperature or the parameters of template melting. Additional solution of MgCl₂ allows easy optimization for individual primer/template systems. Included dyes and increased density of the solution allow loading the reaction mix directly on gel for electrophoresis.