Naturopathic Herbal Drops with a Blueberry Flavor. This dietary supplement is Gluten Free, Alcohol Free, Non-GMO, Soy Free, Dairy Free, Nut Free, and Vegan. It is formulated by Naturopathic Doctors. NDF® immune is designed to help children stay strong and well. Each BIORAY Kids® product contains NDF (Natural Detox Factors) micronized chlorella, a green algae that safely binds to and removes toxins like heavy metals & chemicals from the body. This blend will boost their immune system and support lung, throat and nose irritations so your little one can get on with playtime. This remedy supports a healthy immune system, decreases tiredness & body discomfort, soothes an itchy throat, and resolves phlegm. It is naturopathically formulated with wildcrafted, organic herbs, and selectively imported botanicals for potency and goodness. This product is also free from alcohol, dairy, gluten, nuts, and soy.