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Read our Comprehensive Review of the Jes Extenders For Penis Extension

In-Depth Examination and Assessment: Revealing the Final Verdict on Jes Extender after Rigorous Testing, Thorough Evaluation, and Comprehensive Analysis
Shahrokh Shariat, MD
Senior Editor & Writer

Prof. Shariat has published over 1400 scientific papers in peer-reviewed journals. In 2014 he received the Matula Award from the European Society of Urology (EAU), and in 2017 the Gold Cystoscope Award from the American Society of Urology, probably the most important urologist award worldwide.

The Jes Extender is a penile traction device introduced in 1995 by DanaMedic of Denmark, claiming to grow penis size by up to an inch for every thousand hours of wear over six months. Endorsed by publications like Playboy Magazine and Men’s Health, it has garnered over half a million happy buyers. While its bold promises demand attention, whether it truly delivers on its claims remains a subject of debate and individual experience.

Our Verdict

Editor’s Rating

Our team chose the comprehensive Jes Extender Gold package to thoroughly assess its experience. The product, discreetly shipped from Europe, arrived with mixed initial impressions – some likened it to a medieval torture apparatus in gold. Despite this, our experienced reviewers and medical experts proceeded with testing. Evaluation of the product’s build quality yielded promising results. With years of collective experience in product assessment, we observed high-grade materials that signaled durability and longevity in performance compared to other products prone to premature wear and tear upon unboxing.


  • Increased penis size with permanent results
  • Stronger and longer-lasting erections
  • Prevention of premature ejaculation
  • Correction of curvature
  • Treatment for Peyronie’s disease


  • Risk of injury due to lack of patience in traction adjustment
  • Potential for penis head slipping during traction
  • Difficulty determining correct traction levels
  • Soreness behind the penis glans

Editor’s Top Picks

Original Edition Budget Option

SAVE $20
2 Year Warranty
SAVE $150
5 Year Warranty

Platinum Edition Luxury Package

SAVE $200
Lifetime Warranty

How We Evaluated Jes Extender

During their first experience with this Extender, the team found that some assembly was still required despite the website’s claims. The instructional guide caused initial confusion for visual learners in the group, but instructional videos proved to be a helpful resource. They eventually discovered a method of application through repetition, likening it to a coordination challenge. With practice, they found it became easier over time.


Rating: 8.1 / 10

When using the Jes Extender, users quickly adjusted to its presence without any discomfort. Unlike other extenders that caused pain, this device offered a comfortable fit. Users were impressed by its secure positioning and stability, only noticing it during restroom visits. The tube attachment was preferred over straps for effective stretching and traction with a snug fit.


Rating: 7.9 / 10

In the initial week, following the guide’s instructions, users wore the device for an hour daily at 1200g tension. Surprisingly, they found it comfortable to move around and carry on with their usual activities. However, they were advised against intense workouts while wearing it. As weeks passed, users increased both wear time and tension levels gradually. They reached 2800g tension and wore it for 5 to 7 hours daily. Despite online claims of a 5% size increase in three weeks, personal results varied. Users continued with some skepticism but committed to the regimen.


Rating: 9 / 10

Our team rigorously evaluated the Jes Extender to uncover its benefits. After six months of consistent wear, we observed a 0.5-inch increase in erect length and nearly an inch in flaccid length. These results highlight the device’s potential effectiveness. Consistent use is key for optimal results, leading to improvements not just in size but also in erection quality. As our investigation concludes, the wearer considers taking a break from the device but remains open to future exploration of its benefits.

Customer Service

Rating: 6 / 10

Upon reviewing the Jes Extender, our team found it to be relatively comfortable and easy to wear. However, we couldn’t ignore the overwhelming optimism on the product website. While we understand the need for positive marketing, there was a sense that it may have been too much. With almost thirty years in the industry and over 500 thousand customers, claiming to be the first penis extender available is impressive. Despite this track record, there was a noticeable tone of forced positivity that raised questions about authenticity. The team also faced challenges with customer service and warranties, which will be discussed further in upcoming sections.

Can Penis Extenders Transform Your Size?

Researchers and medical experts have explored the process of tissue stretching for penile enlargement. Applying persistent stretch to the penis shaft causes microscopic tears, leading to cell multiplication and tissue rebuilding at an extended size.1 This method resembles body modification practices in various cultures. Like lifting weights prompts muscle growth, using a penis extender stimulates natural tissue growth. Jes Extender promotes penile stretching as a holistic way to care for your body, akin to eating healthyor running to the gym.2 Unlike traditional muscle bulking with temporary gains, penile enlargement through stretching offers permanent results.3

How To Use The Jes Extender
It comes partially assembled.
Position the Ring:
Place the base of the penis through the base of the extender
Strap Placement:
Fasten the silicon strap just beneath the glans of the penis, adjusting for comfort. For uncircumcised individuals, it can be sported over or under the foreskin.
Extend Bars:
Two spring-loaded can be extended up to 4 inches. Position them against the pubic bone.
Set Length:
Ensure the whole unit is a little lengthier than your flaccid penis, so you can feel a mild stretch. Fasten the rods at that distance.
Attach Front Piece:
Insert the rods into the slots of the plastic front piece, securing it to the glans of the penis. Listen for a click to confirm the secure attachment.
Adjust Stretch:
Turn the screws to increase the stretch. Gradually adjust for comfort and increased stretch.
Further Adjustments:
As comfort increases, fine-tune the adjustment for more stretch.

JES Extender Results

A comprehensive analysis by medical professionals and researchers provides insights into penis extenders like Jes Extender. Users typically need around 1000 hours for six months for notable results. A ‘Slow Start Up Schedule’ is advised for gradual adjustment, endorsed by experts like Dr. Deane. Initial stages involve lower traction settings and shorter wear durations, gradually increasing over the coming months. After consistent usage, reported increases in erect length average 28% and girth by 19% after 4-6 months.

Prolonged use may pose discomfort and challenges, with skepticism among medical professionals about limitless gains. Dr. Deane emphasizes attentiveness to bodily signals and recommends discontinuing use if discomfort arises. While some users experience moderate gains, substantial transformations are improbable. Long-term effects and sustainability of outcomes beyond six months are uncertain. Individuals considering penis extenders should weigh benefits against commitment and consult healthcare professionals for informed decision-making.

TimeframeAverage Daily Wear TimeIncrease in Erect LengthIncrease in Girth
Initial Stage4-6 hours10%N/A
2-3 Months5-6 hoursN/AN/A
4-6 Months5-6 hours28%19%
Beyond 6 MonthsVariableVariableVariable
Note: Results beyond 6 months may vary significantly depending on individual adherence and physiological factors. Consultation with healthcare professionals is advised for personalized guidance.

Prices and packages

The Jes Extender is a class 1 medical device constructed from high-quality, hypoallergenic materials and meets strict safety standards with its CE mark. Manufactured in Denmark, it emphasizes excellence in production. Each package includes access to a dedicated medical professional for support. The product line presents numerous, packages with variations in materials, accessories, and warranty terms, ranging from one year to a lifetime.

Jes extender light package

Photo by Body Freedom Collaborative

The Light package is designed for erect penises of a maximum size of 6.7 inches, with components tailored for enhancement. It includes a base unit, front piece, silicon tube, comfort strap, protection pad, elongation bars, QuickGuide, and a whole year warranty. Backed by a money-back guarantee for size enhancement potential. Users must record progress on a growth sheet for up to 9 months with before and after images. Warranty coverage requires regular communication akin to maintaining an active blog. Phone support is available throughout the process.

The Jes Extender Original

Photo by Body Freedom Collaborative

Upgrade to their top-selling product for a touch of luxury. The complete box contains a 2-year warranty., keys, two additional elongation bars, and a contemporary mahogany case. Appropriate for up to a 9.1 inch penis. Treat yourself to the best with gold or platinum-coated components.

The Jes Extender Titanium

Photo by Body Freedom Collaborative

This Titanium, device meticulously, crafted with precision engineering, offers enhanced traction and comfort for users. It includes additional elongation bars, comfort straps, and a warranty for two years, accommodating erect lengths up to 9.1 inches. Priced at $12 each, the half-inch extension bars offer savings likened to buying additional bars when ordering the Jes Extender Original.

The Jes Extender Gold

Photo by Body Freedom Collaborative

The Gold Jes Extender is made of 24-carat gold and offers a premium enhancement experience with additional components. Confusion arose over the warranty duration, with discrepancies between 2-year and 5-year coverage. The warranty terms proved intricate and required extensive engagement for clarification. After persistent inquiry, it was confirmed that the Gold includes a comprehensive 5-year warranty.

Jes Extender Platinum

Photo by Body Freedom Collaborative

The Platinum package offers luxury and innovation with its pure platinum coating and lifetime warranty, along with the added value of a No-Slip Protech glove. However, there is confusion regarding the warranty duration, with some descriptions stating 2 years and others lifetime. Potential buyers are advised to seek clarification from the company before purchasing. The company provides complimentary shipping to the USA, Canada, and Europe when you spend over$100, with same-day shipping for weekday orders placed before noon (CET). All items are discreetly packaged for customer privacy.

Novel Approach: Penis Extenders for Treating Peyronie’s Disease

Peyronie’s disease, characterized by penile curvature due to fibrous plaque growth, affects 9% of men,4 often leading to discomfort and erectile dysfunction. DanaMedic’s study on 26 male subjects over 6 months demonstrated significant improvements using penis extenders. Results showed a complete disappearance of plaques in 26.9% and a reduction in size and number in 69.2% of cases. It is suggested to alleviate erectile dysfunction by enhancing cellular activity and blood circulation. In the study, 61.9% of patients regained erectile function and 38.5% regained sensitivity post-treatment.

Peyronie’s Disease– Generates a curve in the penile shaft due to fibrous plaque development resulting from trauma, rupture, and inner bleeding5
 – 9% of males suffer from Peyronie’s, with some having a genetic vulnerability6
 – Signs include erectile dysfunction, discomfort during sex, and penile shortening7
Mechanical Traction Study (DanaMedic)– Over 6 months 26 men treated
 – 26.9% (7 cases showed disappearance of plaque deposits)
 – 18 cases (69.2%) showed a reduction in the consistency, size and number of plaque
Peyronies and Jes Extender– The study suggests its penis extender as a remedy for ED resulting from Peyronie’s8
 – Claims boosted blood flow and cell activity
 – 11 patients experienced an absence of sensitivity, 21 had erectile dysfunction
 – After therapy, 13 (61.9%) patients healed erectile function, and 10 (38.5%) recovered penis sensitivity

Penis Extenders and Their Impact on Size

A study published in BJU International in 2015 found that penis extenders can effectively increase penis length in both erect and flaccid states. Extenders were identified as the sole evidence-supported technique for penile elongation. A study with 15 participants using an extender for 6 months showed a mean enlargement of 0.9 inches in non-erect length. Jes Extender, a leading manufacturer, reported consistent weekly increases in penis length among users, but caution is advised due to limited sampling and potential biases in studies supported by the manufacturer.

Jes Extender Alternatives

The MaleEdge: A Budget-Friendly Option

The MaleEdge, launched in 2008 by DanaMedic, provides a cost-effective option for penis enlargement compared to the high-end Platinum edition, using plastic components instead of platinum and gold. The MaleEdge Pro package includes accessories and a one-year warranty with customer support. However, its plastic construction raises durability concerns during movement. SizeGenetics could be a better alternative for those worried about fragility issues with MaleEdge.

SizeGenetics Emerges as Premier Alternative

SizeGenetics is a top-rated penile enhancement device with FDA approval, surgeon endorsements, and a money-back guarantee. Its innovative comfort system and multi-directional ability ensure maximum comfort and effectiveness with upwards of 2800 grams of tractile force. The Ultimate package includes various components such as elongation bars, comfort straps, protection pads, and support products like Accelerate Cream moisturizer and booster pills. With a 1-year warranty and comprehensive user guide, SizeGenetics offers an unmatched experience in penile enhancement devices.


How we reviewed this article:

Jes Extender

It is a popular penis enlargement device with mixed reviews on its effectiveness. Some users report success, while others see minimal changes. Consulting with a healthcare professional before use is advised.

– Body Freedom

Customer support


The Jes Extender offers potential size gains with consistent use, though results may vary. Alternatives like MaleEdge and SizeGenetics provide similar options. Prices range from $200 to $1000. Proceed with caution and patience, following guidelines for safety and optimal outcomes.

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Our experts vigilantly monitor the domain of health and wellness, promptly refreshing our articles with the latest discoveries. Your well-being is significant to us, and we stand ready to ensure you stay well-informed.

March 25, 2024

March 25, 2024
March 25, 2024

Current Version

Written By
Shahrokh Shariat, MD
Edited By
Suzanne Briggs
Medically Reviewed By
Thomas M. Buckley, MD
Copy Edited By
Daniel Johnson

March 25, 2024

At Body Freedom, we rely solely on top-tier sources, such as peer-reviewed studies, to bolster the veracity of our content. Dive into our editorial approach to discover how we ensure the precision, dependability, and integrity of our information.

  1. Nikoobakht, Mohammadreza et al. “Effect of penile-extender device in increasing penile size in men with shortened penis: preliminary results.” The journal of sexual medicine vol. 8,11 (2011): 3188-92. doi:10.1111/j.1743-6109.2009.01662.x ↩︎
  2. Gontero, Paolo, et al. “A pilot phase‐II prospective study to test the ‘efficacy’and tolerability of a penile‐extender device in the treatment of ‘short penis’.” BJU international 103.6 (2009): 793-797. ↩︎
  3. Spitz, Aaron. The Penis Book: A Doctor’s Complete Guide to the Penis—From Size to Function and Everything in Between. Rodale, 2018. ↩︎
  4. Al-Thakafi, Sultan, and Naif Al-Hathal. “Peyronie’s disease: a literature review on epidemiology, genetics, pathophysiology, diagnosis and work-up.” Translational Andrology and Urology 5.3 (2016): 280. ↩︎
  5. Ralph, David, et al. “The management of Peyronie’s disease: evidence-based 2010 guidelines.” The journal of sexual medicine 7.7 (2010): 2359-2374. ↩︎
  6. Gabrielsen, J. Scott. “Peyronie’s disease: is it genetic or not?.” Translational Andrology and Urology 9.Suppl 2 (2020): S262. ↩︎
  7. Serefoglu, Ege C., et al. “Factors associated with erectile dysfunction and the Peyronie’s disease questionnaire in patients with Peyronie disease.” Urology 107 (2017): 155-160. ↩︎
  8. Kayes, Oliver, Lizzie Chandra, and Andrew Yates. “Micropenis and penile dysmorphobia: diagnosis, management, outcomes, and future developments in the field.” Male Sexual Dysfunction: A Clinical Guide (2017): 236-245. ↩︎