Now to answer the theme of this thread. I dont think it matters how old the man is when he starts to do Penis Enlargement and how his gains will turn out and a 'normal' healthy man of 40 has the same exact potential to the young 'healthy' stud aged 18. We tend to see more younger guys with gains because its mostly a younger market that does this and not the majority of men aged 40-60.
The penis starts to grow before birth as the male is formed and stops at puberty and it wont all be affected by testosterone and hormones otherwise steroid users would have massive dicks when they are actually no bigger or smaller than anyone else.
This stuff is like lifting
weights on many levels and many studies now suggest that doing moderate intensity lifting of iron eachday for a male in his 60-70's will increase his strength and muscle mass very fast to like it was many years prior. In otherwords, he will become more youthful from doing that and gain a fitter body.
Just look and Randy 'The Natural' Couture from the UFC who is well into his 40's yet his body is fucking awesome and to me is something to aspire to look like for younger guys, incl me ... he is in GREAT SHAPenis Enlargement .. better than most young guys, so age has nothing to do with it ... you are never too old to do anything but the MIND CAN LIMIT YOU .. that is our lethal weapon, it will make or break you .. literally.
If your determined, focused and commit enough time and belief to the systems of Penis Enlargement than you will gain no matter the age ... young men dont gain better than older men, the best gainers are the ones who BELIEVE in it, have patience, determination and put the work in ... its as simple as that.