The Science Behind Penis Extenders

penis extender medical science

There really is evidence-based proof that these devices actually work and give predictable gains.

You can say a lot of things about penis extenders, but when it comes right down to it, they work.

Not only that, but the research supports evidence that tissue lengthening from traction devices is a scientific fact.

Not convinced?

In the following paragraphs, you’ll read about several well-documented instances of lab-based tests which strongly support the notion that penis extenders do work to lengthen and widen the penis.

There’s not just one study, but several.

The Italian Study

The British Journal of Urology published a study conducted by 7 Italian scientists who tested the efficacy and tolerability of penile extender devices.

Pretty much what their research boiled down to was a review of a popular penis extender that’s made in Spain. They studied 15 men who used the extender for 4 hours a day for an entire year. The men were given instructions on how to use the extenders which, by the way, is very important (if you get one for yourself, please use it properly).

Know what the scientists discovered in their research?

A direct quote from the study says it best…

After 6 months, the mean gain in length was significant

Italian Study

Not only that, but the scientists tested for erectile dysfunction, just in case penis extender devices were somehow messing with the function of the penis. The study found not only was there no erectile impairment, but in fact what they did find was erectile improvement!

Erectile function improved significantly.

This is important news…and it’s coming to us from real science conducted in a real University lab at a real hospital ( San Giovanni Battista Hospital, University of Turin, Turin, Italy).
Want more specifics?

Here you go:

  • Average age of men in the study: 47
  • Length of study: 1 year
  • Average flaccid penile length: 2.82 inches (7.15 cm)
  • After 12 months of using the device: 3.72 inches (9.45 cm)
  • Average stretched penile length: 3.79 inches (9.62 cm)
  • After 12 months of using the device: 4.45 inches (11.32 cm)

Let’s put those figures another way: using penis extenders caused the men in the study to experience an average of 32% growth in flaccid penis size and average 18% stretched penis size.

An even more impressive (average) increase of 36% in erectile function was observed after one year of using the penis extenders.

So, not only does the Spanish device work…it really works.

The Scandinavian Study

Spain appears to be an epicenter of penis extender activity because our next scientific study was first presented at the 1st International Interdisciplinary Symposium on Genitourinary Reconstructive Surgery on April 6th, 7th and 8th 1998 – Barcelona, Spain.

This study was performed by scientists at the Scandinavian Clinic of Plastic Surgery in Copenhagen. They too wanted to know whether penis extenders really did anything or simply represented a terrible hoax played on the men of the world.

What they found was encouraging…in short, amazing gains for every single subject in the study.
Of course it might have had something to do with the fact that the men in this study wore the devices for 12 hours a day!

However, they didn’t do this for an entire year…8 to 24 weeks was the scope of this study.

So, how much did they gain?

How does an average of two inches sound to you? That’s right, these men were able to increase the length of their penises by an average of almost two inches. Not only that, but it only took four months. That’s almost 2mm per week in growth!

The Canadian Study

The Canadian study mimics the findings of the Italian study, with 32%-36% gains in penis size.

The difference here is that these men experienced an increase (36%) in girth, in addition to length.

Again, the difference in outcomes seems to be related to how long the men wear the device each day.

In this study, the men wore the penis extenders for 6 to 8 hours per day. The study spanned five months of device use, which is a much shorter amount of time than the Italian Study.

Now, you may be wondering whether the gains disappear once the man stops wearing the device. According to this study, they did not.

Finally, but perhaps most interestingly, this study found that men who wore the penis extenders during the study experienced an increase in the strength of their erections.

Scientists measured the amount of blood circulation in the penis, as well as the hardness and found a 36% increase. Seems like good news all around.

Further Research

For men with curved penises, it was found in the Journal of Sexual Medicine (2008) that penis extenders can straighten out the curve, thereby increasing length of the penis.

Seems scientific evidence is mounting for the efficacy of penis extenders.

Of course the more the better, so anyone considering using a penis extender might benefit from keeping a sharp eye out for new studies. There’s more research being done in this area than ever before, so it’s just a matter of time before we’ll need to update this article to include the new findings.

Until then, you have the three important studies described above to show that penis extenders are a very viable alternative to penis surgery.

Guys, penis extenders work! You just need to do yourself a favor and know what to look for in a true best-in-class product!

Not all penis extenders are created equally. You have to choose a quality traction device that is medical grade Type 1 device that is backed by the medical community and science. We've reviewed countless cheap, fake, and dangerous products. However, we also found the best in the industry. 

These three are our three top penis extenders for this year. We highly encourage you to read the reviews so you can see what makes them different and so special. They really are the cream of the crop!

If you're tired of feeling inadequate and the size of your penis is preventing you from engaging in intimate and meaningful relationships because you're too embarrassed, this really is the answer you've been looking for. 

Think about how much of a difference just 2 or 3 more inches would make. 

And the best news of all is that the results are permanent!

However many inches you gain, you can never lose!

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