The formulation is unique and is quite different from other immune "boosters" on the market. This is actually attractive, as it offers something new. It doesn't contain vitamin C, but as described on the website this isn't necessarily bad as you can always stack with your own vitamin C if needed. I take this in the morning before eating food. The capsules have a distinct smell to them-neither good or bad-and this smell occasionally can be tasted up to an hour or so after taking. I have not no...Read more.