The composition of the buffers is proprietary. We can, however, share the following: Resuspension Buffer (B1)................Tris-based resuspension buffer Lysis Buffer (B2)................Sodium hydroxide and SDS-based lysis buffer Neutralization Buffer (B3)................Guanidine hydrochloride-based neutralization buffer, containing RNAse Plasmid Wash Buffer 1.............Guanidine/isopropanol-based wash buffer Plasmid Wash Buffer 2.............Ethanol-based wash buffer DNA Elution Buffer.............10 mM Tris, 0.1 mM EDTA, pH 8.5 elution buffer