Black Cohosh herbal benefits those who suffer from anxiety and  related disorders The properties in black cohosh have been used to alleviate menopausal symptoms and calm epileptics. Female Serenity herbal also contains black cohosh with synergistic herbs for all stages of women's health. It relaxes and quiets the nervous system.  Herbal tonics are highly concentrated medicinal herbs cooked and extracted to provide the highest potency for optimal health. These tonics are special brews that are used over long periods of time to promote radiant health. Not used for acute conditions. Tonics provide nutrients that enhance the natural process of organic function. The tonics may be diluted in hot water or liquid : fifteen drops of tonic in four ounces of hot water and sip daily up to 3 x daily. 

I use Black cohosh for nervous tension. My girlfriend uses it for female issues. A little goes a long way for each of us, Thomas.