Well, I have tried JW up to 8 weeks and found it okay. JW had an aromatase inhibitor, and is like a "NHA stack in one". I haven't tried Powerfull yet, but I am sure someone will chime in to tell you his experiences.
From the write-up:
Mormordica Chirantia Extract
We use a specific dual extraction/standardization process that allows us to use both the insulinogenic and non-androgenic AR agonistic fractions unique to a proprietary mormordica chirantia extraction. By doing so, we can foster the hypertrophic event in lean tissue via the two most important mechanisms without the usual negative side effects.
ADED (5a-dehydro-etiocholane-1,4,6-trien-3-one-17-ol)
Many are aware of both the positive and negative physiological issues relating to the naturally occurring aromatase inhibitory ATD. Most of the benefits are the result of one of its physiological 17-OH metabolites. ADED is a natural non-androgenic metabolite of ATD with improved oral bio-availability. Please, do not confuse this with ATD itself as the difference is very important both in structure and action: Some may recall this one from our Ultra H.O.T.ter matrix but to recap…By modulating estrogen build-up the negative feed-back look to the hypothalamus is put in check. The result is that the body optimizes natural testosterone production. We use our favorite aromatase inhibitor to do this and it works pretty well to modulate, instead of obliterate, estrogen. So we still have the right amount of estrogen for optimal growth of lean tissue and positive libido, without the excess water weight and fat feeding aspect.
Conjugated (-)3,4-divanillyl-tetrahydrofuran
We utilize an excellent free testosterone optimizing compound called Conjugated (-)3,4-divanillyl-tetrahydrofuran. This is simply the result of a series of extraction processes performed upon nettle root. Many know of this herb due the anti-aromatase capacity and the studies that show its positive affects upon BHP in men. Some of the nettle extracts also have a positive affect upon the total testosterone to free/active testosterone ratio. More free testosterone means more “active” (as in the part that really matters) testosterone. Nothing really trick here other than it just works better than one would expect. (Nice for a change when something can be simple and effective). Of course, it is all about effective delivery into the body that makes it an asset.
Proprietary Conjugated Coleonol Extract
Hypotrophic-type receptor health and integrity is paramount to lean tissue optimization. In reality modulation is surprisingly dependant upon cAMP stimulation. Without it, receptor activity down-regulation occurs rapidly and the lean mass promoting symbiotic relationship between hormones goes in the toilet. The ALRI Proprietary Conjugated Coleonol Extract supports this need rather well.
