To understand what Australian Made Natural Immune Booster Supplements are we must first talk about what the term “immune boosters” is and why it refers to products that look after or amplify our bodies immune system. Our immune system is vital for keeping us healthy it helps protect us again viral infections. If our immune system is overworked or under resourced we can become more easily susceptible to colds and flus. Looking after your immune system is an important way to look after you.