Rehmannia 1:2 contains Rehmannia root traditionally used to help maintain body temperature already within a normal range. Rehmannia has been traditionally used in herbal preparations to: Clear heat and cool the blood Maintain normal body temperature Support healthy adrenal gland function* Dilute 5 mL (approx. 1 teaspoon) in water or juice once per day, or as directed. Serving Size: 5 mL (1 tsp) Amount Per Serving Calories ... 15 Rehmannia root 1:2 extract ... 5mL from Rehmannia glutinosa root 2.5 g Other Ingredients: Purified water and 23% alcohol. Caution: Not to be used during pregnancy and lactation unless otherwise directed by a qualified health care professional.