No, herbs do fine with absorption in the digestive system, however Anabolic-Matrix Rx goes one step further and contains a patented compound called Bioperine that increase bioavailability of herbs.
Most supplement companies do not bother using Bioperine because it raises the manufacturing cost, and of course cuts into their profits, and since most only care about profits (not if their supps actually work) they cannot justify spending the extra money.
I used to, and I felt it worked. There are a lot of studies that prove it does, too.
The thing is, aside from better sleep, it takes awhile to notice the effects of increased GH. If you my protocol for 6 months, I think you'd notice a difference. It's cheap, too. Definitely improves nutrient partitioning, too.