Chasteberry is used to nourish the liver and kidneys, brighten the eyes and darken the hair. It has the effect of treating yin deficiency of the liver and kidneys (deficiency of yin fluid in the liver and kidneys), dizziness and tinnitus, lumbar and knee soreness (a feeling of soreness and weakness in the lumbar and knee areas), and premature whitening of the beard and hair. Chasteberry is the dried mature fruit of the female of the family Mulleinaceae. Taste sweet, bitter, cool nature. Attributed to the liver and kidney meridians. In addition to the above therapeutic effects, there are also treatments for darkness and uncertainty of the eyes, internal heat and thirst (internal heat accompanied by more food, more drinking and more urination and other symptoms), bone vaporization and tidal fever (a burst of heat) (a burst of heat, feeling the heat from the bone to the outside through the role of) and other diseases. Adverse effects or contraindications are not known. It is recommended to consult a medical professional if application is needed.