The present invention relates to a composition for improving women's menopausal symptoms, comprising an extract of Sunbigi tree. The composition according to one aspect includes vitaxicarpine or vitaxin contained in the extract of S. serrata as an active ingredient, and the vitaxicarpine or vitaxin may exhibit estrogen-like activity at a low concentration. For this reason, the composition according to an aspect can effectively alleviate menopausal symptoms such as weight gain and uterine atrophy without side effects.
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