I can only speak for myself, I have tried the wei lab products, samples only for about 10 days, and I cannot believe how much better I felt. I took the LC balancer and the soup A. I was sleeping better the first night after taking it, and the wheezing stopped, plus I didn't cough as much I had been. I was diagnosed with chronic bronchitis. It is a great product, and after been given levoquin twice by doctors which caused horrible side effects, I will trust wei labs anyday, even if I have to order samples for the next year.