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Fo-ti is the dried or cured root of a twining vine in the knotweed family with broad arrowhead-shaped leaves. It’s a major adaptogenic anti-aging herb used for kidneys, adrenals and hormones to boost sexual energy, mental clarity, hair growth, eczema, dry skin, alopecia, degradation of glands, blood vessel health, reduces free radical damage from UV light, relaxes the bowels, detoxifies and strengthens the blood, reduces blood cholesterol and fat deposits in arteries, anti-tumor, heart conditions, chronic bronchitis. Helps adapt to cold temperatures. Too much may cause diarrhea, intestinal pain and nausea.