After a bad winter last year I decided I would try and immune myself ready for this winter so purchased Swisse Ultiboost Immune in March and took the prescribed does daily. I have had the worst winter ever with flu, colds and even bronchitis, nearly ended up in hospital. I've had to take multable doses of antibotics, which is what I was trying to avoid. Absolute waste of money this product. I thought quoting "BASED ON SCIENTIFIC EVIDENCE" it would work.