Nutrition Care Elderberry 1:1 is a practitioner-only, alcohol-free liquid herbal extract prepared from the fruit of Sambucus nigra (Elderberry) at a 1:1 extraction ratio. Traditionally used in Western Herbal Medicine, Elderberry supports healthy immune system function and helps relieve symptoms of the common cold and mild upper respiratory tract infections. Naturally rich in anthocyanins and antioxidants, it also helps protect the body's cells from oxidative stress.