Roots and Extracts

Black cohosh is a popular remedy for hot flashes, mood swings, and vaginal dryness of menopause. The herb does not stimulate the production of estrogen, but it may compensate for low or highly variable levels of estrogen during menstruation or in the menopause.
In one well-designed study, 62 women going through menopause received black cohosh, estrogen, or a placebo for 90 days. Women who took black cohosh had the same reduction in hot flashes as women taking estrogen. Black cohosh did not stimulate growth of cells in the uterus, suggesting that, unlike estrogen, the herb does not increase the risk of uterine cancer. Black cohosh also increased the thickness of the vaginal wall. The study also suggested that black cohosh could help prevent osteoporosis.

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