Works well but make sure to never take more than the suggested dose as you could become very nauseated. Thinking taking more would be more beneficial for my immune system, I took three times the recommended dose and this led to terrible nausea with vomit episodes. Please take heed.
I have been using this product for several years when I am sick or feel something coming on. I feel like it is a bit more potent than capsules of dry echinacea. Often I will add alcohol-free goldenseal and alcohol-free astragalus for extra immune boosts. Has a bit of a bitter flavor but it's not too bad in juice.
Echinacea is always in the first aid kit. In liquid form - the best in bioavailability. We use the whole family at the first sign of SARS. The older child is especially friendly with her, the next morning already like a "cucumber". The younger one is sick, but it is much easier to endure the disease than without this remedy. My husband and I also help a lot to stay in working order. For our family - just irreplaceable!