Did trial and did not like. Very jittery. I found a number somewhere but cannot find it now and company is not listed in phone directory. I was able to speak to someone in the beginning. They said they would send a different product that I could cut the pill in half and would not get the jitters. I spent 22.00 dollars to get here. The product worked exactly as the other one. I cannot find anyone plus another two bottles came in the mail!!! They did bill my credit card for $149.00 I want my money back!!!