Are there some people on whom the HRx just won work?
No… just as “some people” are not going to be unaffected by the ever increased use of acidulents in processed foods. We are all affected by the acidic pH shift created by these more acidic foods. Certain supplements, and the organic compounds that comprise their “active ingredients,” vary in their effect from person to person. This is not one of those supplements. Read the left sidebar in the HRx introduction page for a better understanding.