Is Curcumitol-Q as effective as advertised, that its concentrated curcumin III is a much more powerful antioxidant than ordinary curcumin, and the addition of quercetin makes this combination product highly effective at reducing body aches and pains from muscles and joints?

This is not being oversold as a general inflammation fighting dietary supplement for both things described. That curcumin subtype is the best of the group, and to give it in a concentrated dose will allow it to do its work more powerfully than as a minor component, particularly in western diets where curcumin is used on occasion but not a heavy component, as seen with Indian food, for example. Quercetin, as you know, has a variety of anti-inflammatory activities, so the two together will be synergistic, and this is the key to why people feel such a benefit from this combination of ingredients.