Nanowell Hovenia-Rx is the maximum strength Hovenia dulcis fruit extract with Vitamin B1, and B2 for improving liver function and has great benefits for tiredness, hangover, and endurance. Internationally patented raw material guarantees its high efficacy. It also has clinically proven its benefits from several wide range clinical tests since 2005. Nanowell Hovenia-Rx has bee sold since 2006 almost every customer satisfies its great results. You may confirm its great value with blood exam after use of 3 months.