Jes Extender Review (2024) – My Results & Rigorous Testing

jes extender box

The Jes-Extender is a penis extender which, through penile traction, can increase penis size by an inch per 1000 hours of wear over 6 months. Hand-crafted and gifted to gentlemen in 1995 by DanaMedic, a Denmark based pioneer leading the male enhancement industry, this was one of the first on the market.

The Jes-Extender has more than half a million satisfied customers and recognition from Playboy Magazine, Men’s Health, Sports Illustrated, and The Telegraph.

Has 6 models to suit each budgetNot the easiest to put on
Company has 14+ years of experience making penis extendersA robot answered on phone support
Very comfortableExtreme optimism on their website feels annoying
Good results

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Through the medium of polished branding torn directly from the gentleman’s club lounge, Jes-Extender promises, no. “Promises,” is too gentle, Jes-Extender declares, it bellows, it very nearly slaps the consumer in the face, with: use me and you will have a longer, thicker member.

Embedded in marketing are claims of the Jes-Extender as a treatment for erectile dysfunction, Peyronies, and buzz terms such as natural, safe, and medical-community-endorsed. The kind every man needs when it’s their penis potentially on the experimental block.

The questions are: How true are the claims? And, can Jes-Extender maximize your manhood?

My Experience Using The Jes-Extender

Since I was wanting to put to the test the full Jes-Extender experience, I opted for the Jes-Extender Gold package. If that makes me a little bougie, then so be it. It arrived in good time (around 7 days from my original order since it was coming from Europe) and was shipped discreetly.

First impressions of the Jes-Extender, well, it kinda looked to me like a historical torture device in gold casing, and the thought of putting it on my penis made me a little nervous, however, I’m no stranger to penis extenders so I soon stopped squirming and got to stretching.

In all seriousness, the product feels like it’s made out of really high quality materials. I’ve tested and reviewed thousands of products over the years so I’d like to think I’m fairly savvy on what quality is, especially after taking some items out of the box and within seconds they fall apart.

The Jes-Extender isn’t like that. It feels solid and sturdy and as though it’s going to last me a good while.

First time applying

1 - 2800-1200g2
3 - 41200g4
5 - 61200-2000g6

While I do believe that the website claims the Jes-Extender comes pre assembled, I did find that there was a little bit of setup to do. After a skim through the Quick Guide that comes with it, I must admit that I was somewhat flummoxed.

I’m a visual man, and honestly, I don’t have the patience to sit and read through directions. That’s a fault of my own and not necessarily down to the quality of the Quick Guide itself.

Thankfully, for people who are more visual, there are some links to instructional videos that helped me out a lot and it turns out that the device is fairly simple to put together.

The more complicated part comes with putting it on. I tried multiple different ways and found that through a little trial and error and some perseverance, I discovered a way that worked for me. I stretched out my penis with one hand, and with the other was able to position the extender against my pubic bone while adjusting the strap to secure it into place.

It’s a little like patting your head with one hand and making circular motions on your stomach with the other. Once you get the hang of it, it’s pretty straight forward. The more I wore the device, the easier it was to apply.


Within minutes of putting the Jes-Extender on, honestly, I forgot that it was there. I’ve worn other extenders in the past that aren’t exactly painful, but definitely uncomfortable.

Because of how comfortable the Jes-Extender was, I found myself checking it out a couple of times to make sure everything was still secure and nothing had slipped out, and it was!

To be honest, the only times I actually remembered I had it on, other than checking, was when I went to the toilet.

I opted for the tube when it came to locking my penis in place. I’d had bad experiences in the past with straps where they’d often pinch and cause quite a bit of pain, but I found that the tube did just the trick and gave a nice amount of stretch and tension, with the perfect amount of snug.


In the first week, I did as the guide instructed and wore the Jes-Extender for an hour per day at the minimum tension level (1200g).

I found that I was able to go about my daily activities just fine during that one hour, almost expecting that I’d have to set aside that time to sit and do nothing, but because of how comfortable I found it, I was able to walk around just fine and get on with whatever I had on.

However, I wouldn’t suggest any major physical activities such as working out.

Over the next couple of weeks, I increased the amount of time wearing it as well as the tension level. I upped it to the maximum amount of 2800g and was wearing it for between 5-7 hours each day. I’d read testimonies online that claimed they saw a 5% increase in penis size within the first 3 weeks.

While that wasn’t my experience, I realize that it’s too early to say. Not everyone is going to see such dramatic results straight away, and I’m not sure I 100% believe some of the other online reviews. So I stuck with it.


Now, let’s get down to why you’re really here. Did the Jes-Extender live up to the hype? As of today, I’ve been wearing it for around 6 months daily (with the occasional break), and must admit I am seeing some growth! When erect, I’m now 0.5 inches longer, whereas flaccid, I’m just short of an inch longer.

I’d say that’s a pretty good result. Like I said, everyone’s experience is going to be different, but I do think if you stick with it, and use it correctly, then you will increase the size of your penis.

I found that my erections have been so much better as well. I don’t know what it is, whether it’s the increase in size or the fact that they just feel so much stronger and harder than they did previously. I’ll probably cool off from wearing it now as I’ve been using it for 6 months, but I’d definitely be open to picking this up again in the future.


While I find the Jes-Extender to be comfortable to wear, I realize that I have no real qualms with the product itself.

My only real complaint is the excessive amount of optimism found across the website. Sure, I understand that they’re trying to sell a product, but it feels like perhaps they are trying too hard and being too positive.

At the end of the day, they’ve been in the business for almost three decades, and they claim to have over half a million satisfied customers, as well as being the first ever penis extender on the market.

The incessant optimism can come off as being a little fake and can often make one question how genuine it is, or maybe I’m just getting cynical in my old age. I also had a few issues around customer support and warranty which I delve into below in more detail.

Do Penis Extenders Really Work?

Yes. It’s not that simple, but yes.

When you place a persistent, relatively large stretch to a single tissue you cause microscopic tears within, in this case, the shaft of your penis. Existing tissue cells multiply to fill these tears and rebuild at the extended size.

The more you tear the tissue, the more tissue is built up, the more penis you have. Your penis increases in size, you increase the traction and the number of hours a day you wear it.


It may sound like an unhappy prospect but like earlobe stretching in body modification, neck elongation in Thailand and Africa, and the skin and skeletal traction used by plastic and reconstructive surgeons to encourage the body to grow additional skin, bone, muscle, and tendon, it is going to work. The body’s response to mechanical stress, in our case a penis extender, by growing new tissue, is natural.

For example, when you lift weights, you cause similar tears in muscle fiber. Muscle reacts as your penis reacts when under the mechanical stress of a penis extender, cells multiply, rebuild and you bulk up. Also like when building muscle, you can feel sore quickly whilst waiting months for visible results.

Cellular similarities to bulking are one of the strategies employed by Jes-Extender to ease men into the idea of sending their penis to the rack. Jes-Extender proposition daily extending as “just another way of taking care of your body, in the same way as going to the gym or eating healthily.” Unlike bulking at the gym, and much more like earlobe stretching, any gains in penis size are permanent.

Benefits Of Using The Jes-Extender

According to the Jes-Extender website, there are a number of benefits that come with using their device, including the following:

  • Increased penis size with permanent results
  • Erections that are stronger and last longer
  • Helps to prevent ejaculating prematurely
  • Straightens curved penises
  • Helps those suffering with Peyronie’s disease

While they also claim that there are no medical side-effects, there are certain things to look out for and be cautious of when using the Jes-Extender. These include:

  • Lack of patience resulting in using too high a traction far too soon
  • Penis head slipping whilst under traction
  • Some men can find it difficult when it comes determining the correct amount of traction
  • Some soreness behind the penis glans

How To Use The Jes-Extender Properly

Jes-Extender comes already semi-assembled. The Jes-Extender has a body contoured ring that circles the base of the penis and a soft rubber strap which you fasten behind the glans of your penis. If you are uncircumcised the strap can be worn on top of the foreskin, or under, whichever is most comfortable.

1. Two bars run parallel to the penis and can be extended up to 4 inches. Place the ring of the device against your pubic bone. The entire unit (the ring plus extender rods) should be slightly longer than your flaccid penis with a gentle stretch by the extender. The rods can then be fastened at that length. The longer the length of extension rod used the greater the stretch applied.

How to use the jes extender

2. Attach the plastic front piece (which attaches to the head of your penis) by inserting the rods into the complementing slots and fasten the rubber strap around the head of your penis. You will hear a click when both pieces are secured together.

3. By turning the hand screws inwards towards your penis you will feel the stretch on your penis increase. As you get more comfortable, the arms can be further adjusted to give more stretch.

Penis Extender Hours Per Inch

Significant results with a penis extender will take, on average, 1000 hours over six months. Achieving these results will require dedicated daily wear for 4-6 hours, though in studies by Jes-Extender, the ideal for guaranteed results is 12 hours a day.

Jes-Extender has a six week ‘Slow Start Up Schedule’ for first-time extenders which they also propose in their daughter brand The MaleEdge. The schedule is designed to allow beginners to get used to wearing their penis extender and the penis traction process.

Dr. Deane, a urologist at Rush University Medical Centre, Chicago, says: “There’s potential for risk in terms of skin issues and pain if it’s applied incorrectly. You can avoid injury altogether provided that you listen to your body very closely and immediately stop everything as soon as something feels wrong.”

Using Jes-Extender’s Slow Start Up Schedule minimizes the risk of over-straining tissues and allows the body time to adapt. It proposes that beginners start out by using lower traction and shorter periods of wear-time.

Jes-Extender Slow Start Up Schedule  
1 & 2800-1200g / 28-42oz1-2
3 & 41200g / 42oz3-4
5 & 61200-2000g / 42-71oz5-6

5-6 hours daily for the first 2-3 months gives a 10% increase in erect length. 4-6 months can give an average of 28% increases in erect length and 19% in girth. After six months, if you want further penis gains you must up the number of hours per day you wear Jes-Extender and the traction force further. If you don’t move around in your sleep, it’s possible to wear Jes-Extender overnight.

Dr. Deane notes: “Penis extenders can be uncomfortable, and it requires wearing it for several hours a day, we’re talking four to six hours. That’s a long time.”

Experienced extenders find they’re only bearable if standing up and difficult to wear with most clothes. Penis extenders also don’t easily move with the body making simple actions that require only minor flexibility extremely uncomfortable.

Jes-Extender claims there is no upper bar or maximum gains and results will continue with repeated use until you’re wrapping your Johnson down your left trouser leg. Dr. Leslie Deane disagrees: “There is evidence that penis extenders result in an increase in length and girth, but it’s not going to get a person who is four inches to seven inches.”

Jes-Extender, nor other brands whose reputation pivots on evidence, does not offer clinical studies beyond the 6-month mark. Users rarely go beyond increases of a couple of inches with some men finding penis extenders only produced increases in flaccid penis size as opposed to erection length.

Bear in mind if your aim is to whip out for the bedroom the kind of monster which would have a stallion blushing: larger erect penises take greater effort to erect in one’s golden years.

The 5 Jes-Extender Packages

Light200$Made from Stainless steel, can be used up to 6.7 inches erect, 1 year warranty
Original230$Made from Stainless steel, can be used up to 9.1 inches erect, has 2 extra elongation bars, 2 years warranty
Titanium250$Made from Titanium, can be used up to 9.1 inches erect, has 2 extra elongation bars and comfort straps, 2 years warranty
Straightener300$Made from Stainless steel, can be used up to 9.1 inches erect, focuses on men with Peyronie disease
Gold350$Made from Gold, same as the Titanium extender but has a custom velcro strap and a cohesive gauze, 5 years warranty
Platinum1000$Made from Platinum, same as the Gold extender with 1 No-Slip Protech, lifetime warranty

Jes-Extender is a class 1 medical device made of lightweight, hypoallergenic, medical-grade materials. The Jes Extender has the CE mark meaning it meets EU safety, health, and environmental standards, and is compliant with EU legislation, as well as being made in Denmark. For all packages, Jes-Extender has a doctor on call to assist you in any way.

Jes-Extender offers five packages: Light, Original, Titanium, Gold, and Platinum. All five packages include the same device coated in different materials including 24-carat gold and pure platinum. Other differences between packages include the accessories included and the warranty which varies from 1 year to lifetime for Platinum.

The Jes-Extender Light

Jes extender light

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Their entry package can be used on penis sizes up to 6.7 inches erect. The Jes-Extender Light comes with 1 base unit,1 dual-function front piece, 1 silicon tube, 1 comfort strap, 1 protection pad, 2 1-inch elongation bars, 2 2-inch elongation bars, 1 Jes-Extender QuickGuide and a 1 Year Warranty.

All Jes-Extender packages come with a money-back guarantee that you will increase in size. To be eligible for that guarantee you need to enter your statistics and progress into a permanent-growth registration sheet once a week every month, for a maximum of 9 months. Guarantee upkeep also includes taking before and after pictures, pictures strapped in to make sure you’re using it correctly, and pictures with a ruler.

In other words, to be eligible for the warranty you are going to have to blog more than I did at the early stages of my career. They also ask if for whatever reason your internet goes down, to kindly contact them, presumably, by phone.

The Jes-Extender Original

Jes Extender Original

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Jes-Extender’s best-selling product, because having your components coated in gold, or platinum could be considered a little extra.

The full package includes everything in the Light version with 2 extra 2-inch elongation bars, a stylish mahogany case, a set of keys, and a 2-year warranty. The Jes-Extender Original is suitable for penis sizes up to 9.1 inches.

The Jes-Extender Titanium

Jes Extender Titanium

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The Jes-Extender Titanium comes in an aluminum case and contains everything in the Original edition including an extra set of ½ inch elongation bars for greater precision in traction, 2 extra 2 inch elongation bars, front piece comfort straps, set of keys, a 2-year warranty and is suitable for penis sizes up to 9.1 inches.

The half-inch elongation bars retail at $12 each, giving a saving of $4 compared to purchasing the Jes-Extender Original plus additional elongation bars.

The Jes-Extender Gold

Jes Extender Gold

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The Jes-Extender Gold, as the name would suggest, is made from 24-carat gold. This package includes all the same accessories as the Jes-Extender Titanium with the addition of a custom velcro strap and a cohesive gauze. The custom velcro strap retails at $39.

There was, at the time of my research, some confusion on the official USA site for Jes-Extender as to whether the product came with a 2-year warranty or a 5-year warranty.

Jes Extender warranty

The description of the warranty on is in itself confusing with the site stating their products come with different warranties depending on the package, the return process and then: “Due to the intimate nature of our product, and thus the strict hygienic standards, we cannot refund a used product. This is clearly stated on the sealed bag stating the product cannot be returned when this bag is opened.”

This was confusing to me because a 1-year, 2-year, 5-year and lifetime warranty is only of any use to the consumer if it is valid for a product which has been used. Unless of course said consumer is a collector of male enhancement memorabilia and said product spontaneously breaks on-shelf.

After an hour-long struggle on chat whereby my conversation was dismissed due to the customer service representative (or bot depending on your level of cynicism) unable to give me an answer to my actual question and then needing to “Take a call,” thereby abruptly ending my conversation, I managed to confirm that the Jes-Extender Gold comes with a 5-year warranty.

This is relevant because one of the things Jes-Extender exclaims you to be paying for is 24/7 customer service.

Jes Extender Customer Service

I would certainly recommend email as within 12 hours of emailing regarding my confusion over product warranty, I received the following:

the Jes Extender Warranty

Jes-Extender Platinum

Jes Extender Platinum

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The Jes-Extender Platinum package includes a Jes Extender coated in pure platinum, a certificate for verification for the aforementioned platinum, all the accessories, and features as the Jes-Extender Gold plus a *lifetime warranty and 1 No-Slip Protech, a kind of glove that wraps around the penis glans beneath the penis extender rubber strap and adds protection, friction, reduces slipping and retails at $12.

*The same inconsistency in warranty exists on the Jes-Extender Platinum with the description listing the warranty for the Jes-Extender Platinum as both 2-year and lifetime.

Jes Extender product description

I can speculate as to a number of innocent reasons as to why this has happened in two separate product listings. However, as you are paying a considerable amount of money for the Jes-Extender Platinum and their email response to me I would consider vague, I would recommend calling Jes-Extender directly before purchase.

As of 2024, Jes-Extender offers free shipping on all orders over $100 to Europe, the USA, and Canada with orders received before noon (CET) on weekdays shipped the same day. They also ship all items in discreet packaging.

A Treatment For Peyronie’s Disease

Peyronie’s disease causes a bend in the penis shaft caused by fibrous plaque growth as a result of trauma, fracture, and internal bleeding in the penis. 9% of men suffer from Peyronies with some men inheriting a genetic vulnerability. Symptoms include pain during sex, erectile dysfunction, and penile shortening.

Mechanical traction on the penis by penis extenders can be beneficial in straightening fibrotic plaque deposits. In a study by DanaMedic, 26 males treated during a 6 month period found plaque deposits disappeared in 7 cases (26.9%) and a decrease in the number, size, and consistency of plaque in 18 cases (69.2%).

Jes Extender and Peyronies

Jes-Extender suggests their penis extender to be a treatment for erectile dysfunction which is a common consequence of Peyronies. They claim this is down to increased cell activity and blood flow. 11 patients of the above study noted a lack of sensitivity and 21 presented with erectile dysfunction. Post-treatment 13 (61.9%) patients recovered their erectile function and 10 (38.5%) recovered penis sensitivity.

Do Penis Extenders Increase Size?

The British Journal of Urology International (BJUI) conducted a 2015 study on penis enlargement. The authors of the study concluded: “penile extenders…can produce an effective and durable lengthening of the penis, in both the flaccid and erect states.”

They further concluded penis extenders as the only evidence-based technique of penile elongation. In another study of 15 men using a penis extender for 6 months, an average increase of 0.9 inches in flaccid length was found. The authors concluded: “Penile extenders are a minimally invasive and effective treatment to elongate the penile shaft.”

Along with testimonials, Jes-Extender obtains data from their customers using their penis extender and self-reporting in their online diary. Jes-Extender analyzed this data and self-taken before and after pictures from customers to demonstrate the relationship between penis length and the number of hours wearing the Jes-Extender.

jes extender results chart

All patients experienced an increase in penis length averaging 0.05 inches per week with no complications.

Note that the above studies, with the exception of the customers’ self-reported data by Jes-Extender, used very small sample sizes and, funded by Jes-Extender and similar brands, may include selection bias, where researchers funded to find prespecified results tweak the study parameters, knowingly or unknowingly, to obtain the desired conclusions.

Alternatives to Jes-Extender

 Quick Extender PROPhallosan ForteSizeGeneticsMale EdgeJes ExtenderPeniMaster PRO
Elongation methodMetal RodsBelt And Metal Rods (Plus Version)Metal RodsMetal RodsMetal RodsBelt Or Metal Rods
Time recommended5 – 8 hours6+ hours4 – 6 hoursDepends on the modelDepends on the program4 – 12 hours
Length extendableUp to 16″No limitUp to 10″Up to 11″Up to 9.1″Up to 11″ (Rods) Or No limit (Belt)
Average size increase28%30%29%29%24.50%30%
Highest amount of tension4000g3000g2800gN/AN/A7600g
Can be worn under clothes?Not recommendedYesNot recommendedNot recommendedNot recommendedYes
Can I sleep with it?NoYesNoNoNoNot recommended
Lowest Model Price150$390$275$149$200$312$
Highest Model Price437$510$500$199$1000$507$
Discreet shippingYesYesYesYesYesYes
Warranty6 months – 1 year2 years1 year1 year1 year - lifetime3 years
Seller LinkVisitVisitVisitVisitVisitVisit

The MaleEdge: a cheaper alternative

MaleEdge Pro

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The MaleEdge (2008), also from DanaMedic, is the newer version and a product of years of customer reviews building on the Jes-Extender. The MaleEdge is a good penis extender at a better price likely due to its use of a more delicate plastic as opposed to the gold and platinum used in Jes-Extenders.

Jes-Extender Platinum, for example, at $1000 is 5 times the price of the MaleEdge Pro. You’re paying for a better build and a lifetime warranty which may be unnecessary and too substantial an outlay for first-time extenders.

The MaleEdge Pro package comes with 1 penis enlarger, 1 product box, 1 travel bag, 2 rubber straps, a brochure, and a ruler/measurer. The MaleEdge offers a 1-year warranty on their products plus 27/7 human customer support. All MaleEdge penis extender packages come with a guarantee the product will give you a permanent enlargement if used correctly with the same eligibility criteria as Jes-Extender.

If you want an entry point penis extender to find how your body responds then the MaleEdge offers a better starter package than Jes-Extender. Note that some users have suggested that plastic instead of metal makes the MaleEdge less durable when worn in movement. If the prospect of the reportedly fragile plastic of the MaleEdge is a big concern for you, then the best alternative to Jes-Extender is SizeGenetics.

SizeGenetics: the best alternative


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Like Jes-Extender, SizeGenetics is a medical type 1 device, and like the MaleEdge the Ultimate Package is still only a fraction of the price of Jes-Extender. SizeGenetics is FDA approved, surgeon endorsed and comes with a 100% money-back guarantee that you will achieve your penis enlargement results.

What makes this penis extender so distinct is its advanced comfort system pivoted on a multi-directional angling piece for the head of your penis, making it fully adjustable for comfort and easier movement. SizeGenetics also uses up to 2800 grams of penile traction.

The SizeGenetics Ultimate package offers the most features and accessories including 1 device, 1 year warranty, 1 luxury leather case, 1 travel case, 1 dual-function front piece,1 silicone tube, 1 comfort strap, 1 protection pad, 2 1-inch elongation bars, 4 2-inch elongation bars, 2 0.5 inch elongation bars, set of keys, 1 No-slip Protech, 3M advanced comfort plaster, 1 accelerate cream moisturizer, a traction powder, a quick start guide, money back guarantee, and booster pills.

Frequently Asked Questions

Are Jes-Extenders safe to use?

Jes-Extenders are safe to use as long as you follow the guidelines set by the company themselves. It’s important that you use the Jes-Extender responsibly and within your own levels of comfort. Do not try to rush the traction process by extending to the highest amount too soon as this can cause bruising, and even penile bleeding.

Are Jes-Extenders effective?

Yes, Jes-Extenders are effective if used correctly. It’s important to know that successful penis extension requires a lot of patience and perseverance, and is not something that happens overnight. It can take up to six months to see noticeable gains when using the Jes-Extender.

Are there alternatives to Jes-Extenders?

Yes, however, penis traction (which is the method used with the Jes-Extender) is often the most safe. Pills are also available, as well as other penis extension practices including vacuums/pumps, which some men prefer over noose straps. Surgery is also an option, however, not something that should be considered lightly with limited evidence backing up its success.

How much does a Jes-Extender cost?

Jes-Extenders vary in price depending on the package you are choosing to purchase. For the Light edition, you can expect to pay around $200. For the Platinum version, there is a price tag of a staggering $1000. Be sure to always do your research when it comes to purchasing a Jes-Extender, in order to find the product that meets your requirements and is within your budget.

 Jes Extender Info
Mailing AddressMaglebjergvej 4
Kgs.Lyngby 2800
Email[email protected]
VAT Number12508670


At Letstalksex, we uphold the highest standards by exclusively relying on peer-reviewed studies to substantiate the information presented in our articles. Our rigorous editorial process ensures that every fact undergoes thorough fact-checking, resulting in content that is not only accurate but also reliable and trustworthy. By adhering to these high-quality sources, we maintain a commitment to providing our readers with credible and evidence-based information.

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Avatar for Deon Black About Deon Black

In the past 11 years, Deon has helped tens of millions of people around the world through his sex toy reviews and guides. Since 2012, he and his team have spent over 60,000 hours testing more than 1000 sex toys. His work & advice has appeared on websites like: Insider, Healthline, MensHealth, Wikipedia, Yahoo, Cosmopolitan, Romper, WomensHealth and more. Learn more.