How or what could the difference be in different sites research chems for Caber be?? One sight which is rather "Innovative" in their "Research" practices, charges $45, 2 others charge $195 and $199..one of those "Guys" is a good company, the other is "C"(heap) "E"(asy) "M"(arketable) in their "Products"...any ideas in the drastic price difference. quantities are equal in all three...30 ml.