Er Xian Wan is a classic Chinese herbal formula used to tonify Kidney Yang and nourish Kidney Yin. It is commonly prescribed for menopausal or perimenopausal symptoms, hormonal imbalance, and age-related decline in Kidney function. This formula balances warming Yang and cooling Yin, helping to relieve hot flashes, night sweats, irritability, low libido, and fatigue, […]