Black Cohosh

Black cohosh (Actaea racemose) is a woodland herb native to North America and it is the root that is used in natural health and is often used for estrogen-related conditions.
In some parts of the body, black cohosh might increase the effects of estrogen. People commonly use black cohosh for symptoms of menopause, premenstrual syndrome (PMS), painful menstruation, weak and brittle bones, and many other conditions.