By far the most effective natural allergy supplement I have ever taken. I have terrible seasonal allergies and would always end up feeling ill for most of Spring and Fall. Not with this! I have to take it often, so it can become costly, but comfort is worth it. I take it at least twice a day. If my allergies are acting up then I may take it three or four times per day. Going even a couple of days without it causes an obvious decline in my symptoms. For those who may need it, if you experience chest pain or a Cough with your allergy symptoms, I reach for Ridgecrest Clear Lungs to pair with this. I notice relief the same day