hey i have seen these around for a while just curious does anyone use these or are they worth anything. just curious i dont use these cause i dought they actually really work and rely on tests to measure. well heres the link
http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=8994&ref=3532&subref=BE&N=2004+113074
http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=8994&ref=3532&subref=BE&N=2004+113074