Nutraburst is the best and most effective immune booster I have ever used. It’s a liquid vitamin so it doesn’t have to take time break down before it can be distributed throughout the body. And it has a great taste! You wouldn’t think you were taking a multivitamin. I am very grateful that I was introduced to this product and the entire Total Life Changes product line as a whole. If you are looking for a way to boost your immune system, look no further! It’s great for the whole family as well (ages 2 and up). Give it a try, I know you’ll love it.