Harker Herbals Elderberry + Vitamin C + Zinc is a liquid dietary supplement that contains elderberry fruit extract, vitamin C, and zinc. Elderberry is traditionally used for supporting the immune system and for promoting respiratory health, while vitamin C and zinc are important nutrients for immune function. This supplement is designed to support the body's natural defenses against common infections and promote overall health and well-being. It is formulated without alcohol, gluten, dairy, or artificial sweeteners. The recommended dosage is 10ml daily for adults and 5ml daily for children over 6 years old.