Nutrition and Supplements Natural Extracts Fenioux Linden Bark 200 Capsules Food supplement that facilitates the elimination functions of the body, particularly renal elimination. Aubier is rich in amino acids, fraxósidos, acid-phenols, esculósidos and tannins. Mode of Use: It is recommended to take 3 to 6 capsules per day divided into 2 doses with a large glass of water, 10 minutes before meals.