it is a healthy drink made from black beans fermented by malted rice without adding any additive.all materials used are 100% japanese such as black bean,malted rice and pure mineral water.polyphenol contained a lot in skin of biack beans,amino acid from beans,citric acid produced during fermentation,vitamin and minerals from malted rice will support your active daily life.liquid type of supplement is rare and it is easier for people having difficulty to take tablets.