About the only thing I can contribute to this is that as a teenager I ended up taking alot of these similar products (hell, that’s where a lot of my money went!) Although I did it for strength training, I worked out like crazy and still managed to masturbate 4-6 times a day! Plus, my penis also grew quite a bit, I never measured it (I think it was about 7 in., maybe a little more) but as a 15 year old with the biggest flaccid hang AND whacking off as much as I did, I would say that this shit is pretty damn good for teenager. As an adult… we’ll see.
SmokeSwirl