sizegenetics penis extender

SIZEGenetics: Review And Results [April 2020]

My SizeGenetics review is the ultimate write-up of this penis extender. I’ll discuss everything from the different packages to the shipping regions and warranties.

I’ll be upfront with you: I couldn’t spend another day resigned to hating my manhood. 

I struggled to accept being smaller than average. 

PopsicleI know that a “normal” penis is between 5 to 6.5 inches on average—but that wasn’t enough for me.1 Plenty of men complain about having a short penis; I’m not alone.2

I felt small, and I acted that way in bed due to anxiety. Thanks to the SizeGenetics, I saw my penis pack on millimeters that eventually turned into inches. The difference astounded me: you’d be surprised how a little growth can look like a massive change. 

SizeGenetics Penis Extender Packages

I’ll kick off my SizeGenetics review with the basics. SizeGenetics offers prospective buyers a choice between four packages, ranging from $199.95 to $299.95. These prices are current as of when my review was written.

These are your options:

  • Value Edition ($199.95).
  • Comfort Package ($249.95).
  • Curvature and Peyronie’s Edition ($299.95).
  • Ultimate System ($299.95).

The SizeGenetics penis extender (and brand) is operated by DanaMedic ApS, a company based in Denmark. 

DanaMedic has other accomplishments in the field of male enhancement besides the SizeGenetics. It’s also responsible for producing the Jes Extender, another popular line of penis extenders. 

This penis extender was originally developed by Dr. Jorn Ege Siana to assist patients in healing after penile surgery. 

Dr. Siana saw that the device could have applications beyond that of a healing aid. He began testing the corrective and enhancement properties—and found them impressive.

Approved documentThese penis extenders are also medically approved. The devices have been assessed and deemed safe by the European Medical Device Directive.

Who Is SizeGenetics Penis Extender For?

The SizeGenetics penis extender is for several types of men. The first category is men who resonate with my sad tale of grief over my inadequate measurements.

Penile traction devices have an excellent track record for boosting size. Medical professionals recommend them as an effective alternative to cosmetic enlargement.

That means that if you’re a little below average or have a bona fide micropenis, SizeGenetics could work for you. Men who are well-endowed but want to get bigger can get in on the action too.

This model can also target and correct penile curvature. Whether your curve is all-natural or a result of Peyronie’s disease, SizeGenetics can straighten you out.

You don’t have to desire extra inches for them to occur. This penis extender isn’t a wishing well: it works either way. If you’re using the SizeGenetics solely for curves, you’ll still get bigger.

Can Anybody Use It?

3 peopleYour manhood has to be at least 1.6 inches while flaccid to use the SizeGenetics penis extender. I think the majority of readers out there will fall into this range.

If the only issue you suffer from is low self-confidence, you can start your extension journey today. Users with legitimate medical troubles may need a quick consultation beforehand.

Average Penis Size

I advise calling up your doctor or pharmacist if you take medication or have a chronic illness, such as diabetes. Any man with a history of surgeries or injuries down-below should do the same (e.g., severe Peyronie’s). 

Is SizeGenetics Effective?

Effectiveness is the foundation upon which any male enhancement device rests. Yes, safety and quality are important too, but they’re nothing without genuine achievements.

This portion of my SizeGenetics review delves into the success rate among customers and scientific research. 

User Success Rate 

Person with maskTwo surgeons have testified to the benefits of the SizeGenetics penis extender. On the website, both Dr. Jorn Ege Siana and Dr. Finn Worm Knudsen praise this product.

Dr. Siana admittedly has a bias, as he’s the creator of the SizeGenetics device. Dr. Knudsen states that he can “confidently recommend” the product. His patients reported being satisfied with the straightening and extending powers of the SizeGenetics.

I can hear you asking me already: what about real buyers?

Well, you can see the photographic proof on their website. Yes, you’ll have to look at penis pictures—but it’s worth seeing what this penis extender can do.

Customers have posted evidence of their gains on the testimonials page. The photos of penises transformed from puny to proud are a visual demonstration of the success rate.

Hand with card aboveIf you need further reassurance, the company bets you the purchase price back after four months. However, you have to prove you’ve used the device as directed for the full 120 days. This essentially means that you can use the device risk-free for four months.

Scientific Research Behind SizeGenetics

You have the right to demand scientific support when it comes to gadgets that go on your penis. The SizeGenetics penis extender holds up to scrutiny in this respect.

For one, it was developed by Dr. Siana, a certified medical professional. Although studies on the SizeGenetics aren’t readily available, there are plenty about penis extenders.

I’ll start with the serious stuff before we move onto the superficial. Penile traction devices are the gold standard for non-invasive treatment of Peyronie’s disease. 

Checklist and pencilOne study showed that patients benefited from an increased flaccid length of nearly one inch after six months. Curvature decreased by several degrees.3

Another trial over the same time period proved similarly successful. Participants had an average curve reduction of 33 degrees and proportionately increased girth and length.4

Daily Mail Press

If combined with other Peyronie’s therapies, penis extenders are even more competent at getting rid of unwanted bends. Some improvement in length is always an outcome of using a penile traction device—a delightful side effect, if you will.5

As you can see, traction devices perform well in terms of penile elongation. They’re also ideal as preventative measures against length loss due to certain Peyronie’s treatment.6 

SizeGenetics Review: Pros 

  • Four-month money-back guarantee.
  • Photographic proof of results on the website.
  • NooseBoth noose and straps available.
  • Medical-grade build.
  • Suits penises 1.6 inches (flaccid) and up.

SizeGenetics Review: Cons 

  • No clinical studies are available on SizeGenetics specifically.
  • Must be removed every two hours.

What Does SizeGenetics Promise?

This penis extender makes you two promises. This section of my SizeGenetics review explores both to clarify what this device could do for you.

1) Longer and Thicker Penis

The SizeGenetics penis extender can gently traction you to a longer, thicker penis overall. Your length while both flaccid and erect should improve for a more spectacular size. 

Sad emoticonUnhappiness with your measurements can lead to serious consequences. Anxiety can cause erectile dysfunction, which won’t help with your low self-esteem.7

You might be pleased with your erections but embarrassed of your flaccid length. With the SizeGenetics, you won’t have to go into every sexual encounter fully hard. 

2) Straighter Member 

A curved penis can impact everything from your confidence to your sexual performance. Men with Peyronie’s will know the plaque build-up can be painful when you get hard. In turn, that can lead to lost erections—and disappointing sexual encounters.

If you were born with a curved penis, the appearance might have bothered you your whole life. Straightening yourself out with the SizeGenetics penis extender can enhance your performance and your self-image. 

What to Expect: Timeline of Results

TimelineThis section is the crux of my SizeGenetics review: the timeline of results. How much growth should you anticipate seeing as the weeks turn into months?

Will you be able to notice a difference visually, and if so, how quickly? I’ll lay out what you can expect over three months.

Now, before you dive in, I have a warning for you. There is effort required to attain the inches you crave: you must wear your penis extender as instructed.

An hour a day twice a week won’t cut it. You need to wear your penis extender consistently and frequently

Week One & Two

Week one is your adaptation period. Most of you will spend this time getting used to the feel and traction of the SizeGenetics penis extender. You won’t see any miracles just yet.

SeedBy week two, you’ve more or less acclimatized. You might notice a teeny-tiny change in your length, but not much else. That shouldn’t get you disheartened: the magic takes time.

Week Three To Four

Week three sees you with a millimeter or two of real growth when you’re flaccid. Users with curvy penises will have to wait and persevere, although you may see some improvement.

As you edge towards a month with your SizeGenetics penis extender, you’re witnessing progress. Your penis may be up to three millimeters longer than at week one. Mild curvature may have decreased by a degree or two. The straightening effect is enough for you to persist.

Week Five To Six

Number fiveBy now, your penis extension journey has commenced in full force. You can log another millimeter of growth to your flaccid length, and maybe half that to your stretched length.

Your erections are looking distinctly more substantial. You can sense that your manhood is getting fuller—put it to good use :).

You’ll notice another millimeter or two in your length by week six. Some users may be below or above this estimate, depending on the level of traction used.

Turbo Charge Your Confidence

Peyronie’s penises are beginning to appear visibly straighter. The change will likely be more apparent in milder manifestations of the disease.

Week Seven To Eight

Week seven has you looking down on a penis that is markedly different from the one you started with. You’re longer when flaccid, and while erect too. Your girth has thickened out proportionately to the extra millimeters of length.

Excited faceYou’ve made it to two months with your SizeGenetics penis extender. Progress is undeniable—your sexual partner (or partners) will be able to tell.

There’s another couple of degrees less of curvature in your penis. You can now clearly notice that your member is on the way to getting straighter.

Week Nine To Ten

You’ll be amazed to find you’re edging closer to a half-inch of flaccid growth. The millimeters keep piling on as you stick with your penis extender.

If you measure yourself with eagle eyes, you’ll see another millimeter or two added to your length by week ten. Regardless of your previous circumference, you can see that you’re thicker too.

The pain of Peyronie’s has started to alleviate as your curve grows less pronounced. Erections feel more rigid, and the length boost is keeping you confident.

Week Eleven To Twelve

ResizeBy now, some of you might be less than a few millimeters from 0.5 inches of growth. If you took before and after photos, you’d see how your manhood has transformed. 

By week twelve, there’s no way you can say your male organ isn’t getting bigger. If you started off with a curve (natural or Peyronie’s), you’ll feel like your dedication to the SizeGenetics is paying off big time. 

Week Thirteen

Three months will have you celebrating a full half-inch of flaccid and possibly erect length. Curved penises should have straightened by several degrees or more

You’re one month away from the money-back guarantee. It’s unlikely you’ll be taking advantage of it: your SizeGenetics penis extender is here to stay.

Testimonials for SizeGenetics

At this point in my SizeGenetics review, you’ve heard enough about the virtues from me. Discover what buyers of this penis extender have to say about it here:

sizegenetic testimonial

sizegenetic testimonials

sizegenetic penis extender testimonial

How to Use SizeGenetics Penis Extender?

This penis extender does come in four packages, but the essential set-up of the device is the same. Don’t worry if you don’t fully follow these instructions, Sizegenetics provides you with detailed information (pictures & video included) how to use the device. Here is my short guide about the sizegenetic usage:

  1. Set your penis extender to 0.39 inches longer than your flaccid penis. It comes pre-assembled: you might have to change it to fit your size (explained in step two).
  2. Remove the basal plastic ring and head support. Then, screw the appropriate extension bars onto the device. Reattach the basal ring—you should hear a click.
  3. Book with infoSlip your penis through the basal ring. Ensure the metal bars are parallel to your manhood.
  4. Reattach the head support and place the head of your penis into the bowl of it.
  5. Pass either the silicone noose or comfort strap through the plastic support to make a loop around the head of your penis.
  6. Press the plastic support so that the two springs click into place.
  7. Fasten the noose or loop around your penis by pulling the ends and securing them. 
  8. If you wish to add the foam protection pad, secure it into the head support. 
  9. Manipulate the thumb screws to your desired traction. Each marking on the hexagonal pistons signifies 300 grams of traction.
  10. To take your SizeGenetics penis extender off, unclip the support head, and you’ll be free. 

Frequency of Use

SizeGenetics eases you into a routine that builds up week by week. You need to remove the penis extender every two hours. 

MassageAfter you massage your member to restore blood circulation, you can put it back on again. Unless you’re experienced with penis extenders, I suggest sticking to the schedule:

  • Week One: Two to three hours per day at 600 to 900 grams.
  • Week Two: Three to four hours per day at 600 to 900 grams.
  • Week Three: Four to five hours per day at 600 to 900 grams.
  • Week Four: Five to six hours per day at 600 to 900 grams.
  • Week Five: Six to seven hours per day 600 to 900 grams.
  • Week Six: Seven to eight hours per day at 600 to 900 grams.
  • Week Seven onwards: Eight to 12 hours per day at 900 to 1,200 grams.

Choosing Your Traction Level

Directional arrows signals on a poleThe SizeGenetics penis extender’s manual is explicit about traction. New users won’t be at the same level as men who have had the device for weeks.

For Beginners

Beginners will stick to no more than 900 grams for the first six weeks. The minimum is 600 grams: if that’s too much for you, feel free to go down.

Best Traction Level

You’ll be working up to 1,200 grams of traction with time. The maximum traction is about 6.1 pounds, or 2,800 grams.

The best traction level is the one you feel comfortable with that’s getting you results. You will eventually level up to greater traction, but don’t do so at the cost of injury.

Get Your Penis Extender

What About Slippage?

BriefYou can fight the SizeGenetics slipping off your member with the comfort strap or silicone noose. You’ll figure out which one best suits you and is easiest for you to handle.

SizeGenetics Side Effects and Complaints 

The SizeGenetics penis extender shouldn’t result in side effects unless you misuse it. That means following the manufacturer’s guidelines to the letter.

Don’t try to experiment with wearing your penis extender overnight. Starting out with the full 2,800 grams of traction is a sure way to hurt yourself. 

All of these symptoms could indicate you’re not using the device properly:

  • Skin irritation.
  • Swelling.
  • Pain and soreness.
  • Numbness, coldness, or blue skin.

Triangle with exclamationThe last item on the list indicates poor circulation. Remember, you need to remove your SizeGenetics penis extender every two hours to massage your penis.

Another possible complaint is lack of effectiveness. Before you rush off for your money-back guarantee, assess how you use your SizeGenetics penis extender. 

Do you wear it as directed? Have you been following the outlined routine diligently, or slacking off? How much time has passed?

There’s a reason why SizeGenetics only refunds you after 120 days of consecutive use. You’re bound to see results if you use it correctly.

SizeGenetics Penis Extender Models

Hand with bagThere are separate answers to your question. Don’t forget, there are four packages from SizeGenetics you can buy. 

SizeGenetics Value Edition

  • SizeGenetics penis extender.
  • Dual function front piece.
  • Comfort strap.
  • SizeGenetics QuickGuide.
  • 1-inch elongation bars.
  • 2-inch elongation bars.

sizegenetics penis extender value edition

SizeGenetics Comfort Package

This kit comes with everything as the Value Edition, and includes:

  • Silicone noose.
  • 0.5-inch elongation bars.
  • PillowsSet of keys.
  • No Slip Protech.
  • 3M Advanced Comfort Plaster.
  • Leather case.

sizegenetics penis extender comfort package

SizeGenetics Curvature and Peyronie’s Edition

This kit for curved penises is identical to the Comfort Package, but it comes with cohesive gauze.

sizegenetics penis extender curvature and peyronie’s edition

SizeGenetics Ultimate System

The Ultimate System has it all. Everything I’ve listed above except for the cohesive gauze, and these extras:

  • Revita cream moisturizing lotion.
  • Traction Plus powder.
  • Travel case.

sizegenetics penis extender ultimate system

Purchase Information

I won’t leave you hanging with my SizeGenetics review. I’ll share where you can buy this penis extender and other vital purchase details.

Where Can You Buy SizeGenetics?

BrowserYou can buy the penis extender on the official SizeGenetics website. I wouldn’t trust other distributors if I were you, go straight to the source.

Shipping Countries 

This penis extender ships worldwide. You shouldn’t be denied penis enhancement based on your location.

How Long Does Delivery Take?

SizeGenetics aims for the swift delivery of your penis extender. The estimated time for the United States and Europe is within one to two days. If you’re living elsewhere, delivery can take from one to four days. 

Is Packaging Discreet?

Your address will be printed on the box, but nothing else. No neighbors or flatmates will see so much as a hint of the SizeGenetics name.

Is There a Warranty?

Ribbon with check markYes, the SizeGenetics penis extender comes with a one-year warranty.

What Is the Return and Refund Policy?

You’ll get a full refund if you can prove you’ve used the device for four months as instructed with no results. Otherwise, you can’t return your penis extender for sanitary reasons. 

Are There Coupon Codes?

Prices on the website are currently reduced for all packages. You can search online to see if other coupon sites are offering discounts on SizeGenetics. 

SizeGenetics Review FAQ

I’ll sum up my SizeGenetics review with two frequently asked questions. Don’t worry; I intend to answer them too.

Is It Safe to Use?

Yes, if you follow the SizeGenetics user guidelines. Like any product, disregarding the manual can damage the device and, in this case, your penis. 

Can It Straighten Your Penis?

The SizeGenetics penis extender can reduce penile curvature. That includes natural bends and those caused by Peyronie’s. 

Alternatives to SizeGenetics

I’m not here to force a particular penis extender on you. If you’re still uncertain about the SizeGenetics, check out how these four penile traction devices compare or read our penis extender buying guide for more information.

Read My Review: Phallosan Forte

The Phallosan Forte will appeal to users who desire a device with strong medical guarantees. It’s a product of Swiss Sana AG, a German-based medical organization. 

This penis extender is the sort of premium you’d expect from German engineering. It’s made of allergen-free quality materials, and has been tested to ensure it’s safe and effective. 

There’s a clinical trial on the elongating abilities of this penis extender that proves it isn’t all hype. Unlike the SizeGenetics, the Phallosan Forte can be worn long-term without necessary breaks.Phallosan forte penis extender


  • MicroscopeHigh-grade construction.
  • Scientific trial supports effectiveness.
  • Can be worn long-term.
  • Unique suction-based system.


  • Pricier than SizeGenetics. 

Read My Review: PeniMaster Pro

Are you looking for a penis extender that’s tailored for almost any user? The PeniMaster Pro has products for all budgets, preferences, and experience levels.

You can get the PeniMaster Pro as a basic system for a little over $200, or shell out for the complete set for under $350. Choose from straps or rods to combine with the unique suction system.

Users who want to take penis extension to extreme peaks can purchase the basic system with weights. If you’re determined to do all you can for a larger penis, that might entice you. 

Weighing scaleAlthough it’s inadvisable for all but the most committed men, you can reach over 16 pounds of traction. You get the quality assurance of German engineering with this penis extender.

penimaster pro penis extender


  • Packages to push you to the limit.
  • Variety of penis extenders, including strap-based.
  • Affordable options (e.g., the basic package).
  • Three-year warranty.


  • Won’t suit men who dislike suction-based systems.

Read My Review: Quick Extender Pro

If the SizeGenetics four-month waiting period has you aggravated already, you may want something with a faster guarantee.

The Quick Extender Pro is the optimal penis extender for impatient users. The manufacturer assures buyers that they should see noticeable results in one month

Person who slippedThis device claims to be able to get you up to one inch per month. Another benefit of the Quick Extender Pro is a specific guarantee against slippage. It’s designed with a double-strap system to keep your penis in place no matter what. 

Compared to SizeGenetics, Quick Extender is more affordable. Three of the four available kits are currently priced at below $179.99. 

quick extender pro delux edition


  • Anti-slippage.
  • Fast-working.
  • Low prices (starting at $119). 
  • Highly reviewed.


  • Deluxe Limited Edition kit is bank-breaking. 

Read My Review: Jes Extender

The same company runs the Jes Extender brand as SizeGenetics: DanaMedic ApS. If you want more than a standard penis extender, the Jes Extender will attract you.

DiamondYou can’t beat the materials some of these extenders are made out of. You can buy a Jes Extender coated in titanium, platinum, gold, or silver. The carry cases for these gadgets are sleek and stylish; some are mahogany. 

These models aren’t all flash and glamour. Using the Jes Extender will have your penis 28 percent longer than when you began after six months. Your girth will also enjoy a boost of up to 19 percent thicker.

jes extender


  • Aesthetically pleasing.
  • Well-built and durable.
  • Money-back guarantee after 1,000 hours of use.
  • Same manufacturer as SizeGenetics.


  • The Light kit isn’t suitable for penises over 6.7 inches.

SizeGenetics Review Final Verdict 

Cube with arrowsLiving with a small or curved penis doesn’t have to be your reality. It doesn’t matter what the average size is: if you don’t feel good about your dimensions, do something about it.

Don’t continue beating yourself down before every sexual encounter and expect to go on like that. You won’t perform well, and you’ll only be more down on yourself afterward.

I can tell you that I’m back to being a sexual athlete with the gains I got from SizeGenetics. This penis extender is a good value for the money, whichever package you end up choosing.

It’s well-designed and constructed with quality in mind. Inches of growth await you so long as you’re dedicated and use it as directed.

The information on this website has not been evaluated by the Food & Drug Administration or any other medical body. We do not aim to diagnose, treat, cure or prevent any illness or disease. Information is shared for educational purposes only. You must consult your doctor before acting on any content on this website, especially if you are pregnant, nursing, taking medication, or have a medical condition.

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