Contributes to the normal functioning of the immune system. Vitalpur Defensas is a food supplement based on Royal Jelly (1500 mg), reinforced with substances that contribute to the normal functioning of the immune system, such as Zinc, Copper and Vitamin C. It also contains Propolis, Echinacea and Lactoferrin (a protein present in mammalian breast milk). VitalPur Defences has no added sugars and uses Stevia (a sweetener extracted from the leaves of a plant).