Re: and this says they're both no good....

 >>When curcumin is combined with piperine, its bioavailability improves by 2000%. So, that's another ingredient to look for.

Hmm. Interesting. But 2,000%? (I heard it was 1,874.32%!!)

Again, increasing the absorption of certain compounds is not always desireable.  There are good reasons sometimes for poor or no absorption of certain compounds, which is why the body absorbs them poorly or not at all.  We see this all the time when people are trying to outsmart Nature.  They are called pharmaceuticals, and look at how dangerous they are compared to the natural counterparts.