Water Pearls complements Classical Pearls' trademark aconite approach to chronic Spleen/Kidney weakness with a rehmannia based remedy. Its design is based on the 17th century Daoist remedy Yanling Guben Dan (Extend Life and Fortify the Source Pellet), a food grade tonic that represents an extension of the classical 2nd century formula Shenqi Wan (Kidney Qi Pill). It is overall more moistening than the constitutional Kidney tonics that feature aconite as their chief ingredient. Water Pearls are suitable for chronic Kidney deficiency issues and overall anti-aging effect.