I'm not being a hater. I think you're a cool guy so I'm giving you the straight dope....and trying to save you money I might add.
Unless you're Mr. DB, most of us have.
Penile growth is caused by DHT and hGH and the volume dimensions are predesignated by your genetic code.
The active ingredients in said pills may cause a temporary increase in unbound Testosterone levels and NO2 in the Corpus Cavernosum, thus increasing erection level, thus increasing pressure on the inner walls of the Tunica Albuginea, but hardly enough to cause plastic deformation of that tissue, that would, in turn, increase permanent penile volume. The Tunica is partly comprised of Type III collagen fibers: which has the tensile strength of steel.