Sambucol Black Elderberry Extract is specially formulated by scientists to help support the immune system and fight off coughs and colds which are especially prominent in Winter weather.. Black elderberry extract for kids is ideal kids from 1 year up to 12 years. It has high antioxidant levels to protect cells. Sambucol should be taken throughout the year to support your immune system by increasing your antioxidant and multivitamin intake.