This product is one of the best I have found for respiratory immunity. It can be taken daily as a preventative during cold and flu season (especially advantageous if you are prone to bronchitis or sinus infections) or it can be taken once you have already come down with something. Results come quickly and I have given it to numerous people with no reports of side effects but rave reviews all around.
Posted by iHerb Customer on November 11 2008 | Verified Purchase
Excellant herb for keeping colds at bay. Used it all last winter at half-dose daily and had no more than a sniffle.
Posted by iHerb Customer on April 8 2011 | Verified Purchase
The product arrived on schedule. We are pleased with the effectiveness of this product.
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