RNA Safeguard is a non-toxic, aqueous tissue storage reagent that rapidly penetrates most non-frozen tissues to stabilize and protect RNA in fresh samples. Upon tissue collection, quickly immerse the tissue in RNA Safeguard reagent, which suppresses all factors that compromise RNA purity and integrity and destroy cell structure. The sample can simply be immersed in RNA Safeguard and stored for later analysis, thus avoiding the tedious and time-consuming routine method.