First defense is a unique childlife formula. We have researched and hand-selected herbs and minerals known for their direct and effective immune response properties. First defense is completely safe for children of all ages and can be used at the first sign of any acute symptom or susceptibility to infection, as well as periodically to increase natural defense responses. First defense is the most complete and effective all natural formula. A strong immune system is fundamental to good health and well-being. Today’s children face unprecedented challenges from two very important areas. On one hand, the nutritional value of the food we eat decreases as the nutritional content of the soil is depleted through time and modern farming methods. On the other hand, the rapid increase in environmental pollution and toxic burden creates an increased need for these nutrients, the vitamins and minerals that protect, nourish and sustain a child’s natural, healthy development. Eat right and support your child’s development with childlife formulas. The first and only complete liquid nutritional program formulated specifically for infants and children, by homeopathic pediatrician dr. Murray clarke.