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The JES Extender

By on January 25, 2018 in Male Enhancement with 48 Comments


Manufacturer: DanaMedic ApS

The JES Extender is a medical penis enlargement device used for increasing both length and girth of the penis.

It’s also used as a treatment for  Peyronie’s disease and penile curvature.

It’s been  approved by the FDA and qualifies as a Class 1 medical device.

The device ended up being tested as part of a comprehensive study at the Scandinavian Clinic of Plastic Surgery in Copenhagen.

In 1998 the findings were presented at the International Interdisciplinary Symposium on Genitourinary Reconstructive Surgery in Barcelona, Spain.

The results demonstrated a 30%  increase in the penis size of test subjects over a 24-week period (view study).

How it Works


Originally developed by a Danish plastic surgeon named Dr. Jorn Ege Siana, the device works through a process called cytokinesis, which uses the body’s natural ability to divide and multiply cells when tissues are stretched over time, resulting in new growth.

This technique is used often by plastic surgeons, for example in treating burn victims, or as a way to lengthen one leg that’s shorter than the other.

It’s also seen in various indigenous cultures around the world who have been inserting large plates or other objects in their lips and ears for thousands of years.

How to Use the JES Extender

There are three basic steps to using the device:

  1. First, the penis is positioned through the base ring and extender bars.
  2. Next, the head of the penis is placed through the silicone band which is then pulled down to fasten securely.
  3. Finally, an appropriate amount of traction force is adjusted by twisting the extender bars on each side.

For best results, the manufacturer recommends wearing the device initially for 1 hour a day, gradually increasing to 6 hours a day for the first few weeks.

The JES Extender can eventually be worn for as much as 12 hours per day.


The extender can generally be used discreetly while wearing loose-fitting pants or shorts.

Wearing the device while sleeping or during physical activity may cause it to become unattached.

Additional information can be found at the official FAQ page, or by viewing the JES Extender user manual.

Bathmate HydroMax Pump


See Also: Bathmate Review – Getting Yourself Pumped For a Bigger Penis


Manufacturer Video


JES Extender Results

The following before and after photos were obtained online, documenting results from using the device.

Claims of 1-3″ gains or more within the first six months of continuous use are common.

JES Extender Before and After JES Extender Results JES Extender Reviews JES Extender Review

Where to Buy

As of now, the JES Extender is only available through the manufacturer’s website, but they do get points for the discreet packaging and fast shipping.

For those of you who’ve asked about international shipping: They are able to deliver to over 200 countries worldwide, including Malaysia, Philippines, Indonesia, India, UK, Canada and Germany, so getting a device sent to you shouldn’t be a problem for most.

The company does offer a double money-back guarantee if there is no increase in penis size after completing the program, which is also a definite plus.

Does the JES Extender Work?

Although it was shown to be effective by the research cited above, a separate study by the BJUI also found that:

… great attention has been given to penile extenders, non-surgical devices that generate progressive mechanical traction the the penis … it seems that these devices can produce an effective and durable lengthening of the penis, in both the flaccid and stretched states”.

“… penile extenders represent the only evidence-based technique of penile elongation”.
“In conclusion … evidence suggests that penile extenders are effective minimally invasive methods of penile lengthening. The application of such devices can be recommended in all patients regardless of the penile length …“

The results of this study can be viewed here.

I have to admit, based on the clinical evidence alone it would be hard to deny the potential benefits from using the device.

Since it also carries the European CE mark and is FDA Approved as an accredited Class 1 medical device, you at least know it’s not some fly-by-night gimmick.

But based on my own personal experience alone, I’d have to say that the JES Extender is quite possibly the most overall effective penis enhancement device out there, and it’s something I recommend wholeheartedly to any guy who’s serious about increasing his penis size.

If you use this thing consistently, you will not regret having made the investment.

For price and additional information, visit the JES Extender website.


See Also: Best Male Enhancement Products for Penis Enlargement, ED Treatment and Harder Erections

Overall Rating

Visit JES Extender Website

Have you tried out any of the JES Extender models? I’d love to hear about your own personal experiences. Feel free to email me or leave a comment or review below.

About the Author

About the Author: Mark McIntyre is the founder of and acts as it's chief contributor. He is a fitness trainer and avid mountain biker who also enjoys camping, hiking and fishing. Besides managing Male Health Review, Mark is also a guest columnist for several blogs related to men's health. More about this author...

There Are 48 Brilliant Comments

  1. justin says:

    Hi mark i’m under the minimum lenght flacid it says to use, but i grow to near 5 inches erect,is there a differnt extender you can reccommend or do you think i’d be ok to use this if when i use it i’m at or above minimum length

  2. Olá, boa tarde!!!

    Há bastante tempo atrás eu adquiri o Jes Extender pela clinica do Dr Bayard, e na época o vendedor me falou de uma PÓ (branco) para usar na glande para não escorregar….

    Eu não me lembro do nome, alguém saberia me dizer? Experimentei talco e não serve…

  3. Marcelo says:

    Olá Mark! Eu voltei a utilizar o aparelho que adquiri a muito tempo atrás e na época, a loja havia me dado um PÓ (branco) para utilizar no órgão para não escorregar. Eu não me lembro do nome desse pó, há alguma indicação?

  4. Patrick says:

    I can see that the device makes the penis larger in its flaccid state, but what about in the erect state? Will erections be larger and longer as well after use of this device? After all, that is kind of the point. Thanks.

  5. M says:

    I am very afraid of using this product…i would like that it works but i am not sure promise girth gain which i am sceptic about cant understand how cant it increase it

  6. Syd 77 says:

    Hi guys I’m into my 7th week of using the gold extender. I’m comfortable now with 1500 gm of tension , I haven’t measured
    Much because i want to do monthly measurements, i feel the gains will be more noticeable etc if I’m not always measuring. I’ve noticed only a small gain do far around a few mm but its early days so im relaxed about it all and just remembering thats its a marathon not a sprint to get results .. i would really appreciate feedback, advice and results from other users, so i know if I’m doing ok with progress and technique
    Cheers guys

  7. Moe says:

    Any results so far

  8. Ricardo says:

    Hey Mark, do you think you can do a review on PeniMaster Pro? It’s like a mixture of Jes Extender and Phallosan Forte. They also have a weight expander. But I’m curious on how legit they are. I’ve heard many great things about their devices and I want to try them myself, but I also want to know what you think in your professional opinion. I’m trusting you hahaha

  9. Nathan says:

    Hello, what is the difference between the original and the lite one?

    • The lite version is the standard “no-frills” package and is really all you need to get results. The other models work exactly the same, they just come with extras, like additional elongation bars, comfort pads, etc.

      That said, I would personally recommend getting the original because it comes with a silicone tube (which I prefer), plus additional elongation bars and a two-year warranty rather than the one-year. Beyond that, the other models are a matter of choice, but I would definitely suggest the Original version for most guys, since it’s a good balance between options and cost.

  10. Drewe says:

    Hi mark yes my stretch is good I’m on 1500 and yes it stays on I do have to change it and milk as it does hurt I dnt no what is wrong but I’m so frustrated can you help ? Plz email some tips

  11. Lance Westerman says:

    How much total cost?

  12. Drewe says:

    Hi I’ve used jes for 4 months now every day for 5 hrs a day and I have not grown at all I’m still the same as when I started can anyone help ? Has this happened to anyone else ? I’m so frustrated

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