Elderberry and vitamin supplement to strengthen defenses and stimulate the immune system. Elderberry helps the body's defenses, vitamin D and zinc help the immune system function. Vitamins B2, B6 and B12 help reduce tiredness and fatigue. Vitamin C contributes to the normal functioning of the immune system. Instructions for Use: Take 10 ml daily. Shake before use. Can be diluted in water or other liquids.