Why do you still cling to the notion that a well funded adversary (who is the #1 threat, as they have the $$ - Mom & Pop ain't footing the bill to a Lab) can't figure out a prop blend? GHoGH even said they could, but it was the PhytoFUSE
TM process that would be hard to figure out. But then you came back and said figuring out a PC Complex was easy.... so both those together kind of put another dagger in the "Prop Blends Protect" argument.
It would seem, as far as protecting something, you get a Patent and Trademark on "PhytoFUSE". Then if anyone wants to use it (or steals it) - you will win. Like that guy who owns the Nitrates patent.
Anyway, anyone want a theory?
Going back to our good friend Meriva Curcumin, we know that PC complexed compounds WAY increase absorption. Ie. you can use 100mg of a compound that will equal the blood plasma concentration of ingesting 500mg without Phsphatidylcholine. (I'm taking liberty with numbers for illustration).
So, from the latest research on -(-)Epi, we have blood plasma concentration numbers for 50, 100, and 200mg of plain old orally ingested Sigma-Aldrich -(-)Epi. But with our friend Phophatidylcholine in the mix, we EXCEED the 200mg numbers by a huge margin with just 50mg of -(-)Epi.
But how is that going to look on the full page ad?

Pay more, get less. Now *we* will say hell yeah, 5x the blood level for $10 more? Sign me up! - but the average schmoe will head on over and get 150mg of MDX -(-)Epi for $19.99.
AMS PH's are the same way - 25mg Cyclodextrin vs 300mg Oral (and no they don't disclose either - that amount is a guess). But the stuff works, as I bet OL -(-)Epi does.
Anyway, just a guess. And If correct, I can see why marketing wanted a prop blend. And look! Nothing nefarious!

But something *is* hidden. And I would open label it and rake in the money from intelligent consumers, and let the morons who don't know science, stay weaker
Or I could be totally wrong and we'll never know anyway