The staff here recommended a supplement for my low blood pressure, but a few days later I was told by my natural doctor that most of the herbs in the supplement lower blood pressure. I have extremely low blood pressure so it seems dangerous for me to continue to take it. When I inquired about a return or exchange for the $150 worth of supplements I was told it wasn't possible even though the container is 95% full. If your money or health is important I highly recommend a place like Wholefoods where you can return items without any hassle. My doctor (Dr. Beeghly at www.chwnv.com) put me on natural supplements for less than $150 that worked immediately. Lesson learned.