If you are researching SizeGenetics reviews, you probably want more than a basic product description.
You want to know what using the device is actually like, how comfortable it is, how it fits into a daily routine, and what kind of results you can realistically expect over time.
In this SizeGenetics review, I will start with my own personal experience.
I used SizeGenetics consistently for six months, tracked my wearing time and measurements, and gradually increased the tension as I became more accustomed to the device.
I will explain what happened month by month, what I liked, what I found challenging, and what results I achieved.
After sharing my personal SizeGenetics experience, I will move on to the product itself.
Benefits of SizeGenetics extender:
- Gradual improvement in penile length with consistent use
- A non-surgical approach to penile traction
- Adjustable tension that can be increased gradually
- A routine that can be adapted to several hours of daily use
- Durable construction and reusable components
- No need for medication or invasive procedures
SizeGenetics is an FDA-registered penile traction device that uses calibrated tension to promote permanent length gains over months of consistent use.
Quick Verdict on SizeGenetics extender:
After six months of consistent use, my experience with SizeGenetics has been positive.
I started at 6.2 inches and reached 7.3 inches, for a total increase of 1.1 inches.
I also noticed some improvement in girth and felt that the device became increasingly comfortable once I got used to wearing it.
That said, SizeGenetics requires patience, consistency, and several hours of regular use.
It is not something I would recommend if you are looking for instant results.
For me, however, the time and effort were worthwhile, and I plan to continue using it.
My 6-Month SizeGenetics Review: Experience, Progress and Results
I have now been using SizeGenetics for six months, and I wanted to share my complete experience from the beginning.
Before I started, I measured 6.2 inches. Six months later, my measurement is 7.3 inches, which means I gained around 1.1 inches in length.
I used the device consistently, usually 5-6 days per week for around 4-6 hours per day. I also kept a spreadsheet where I recorded my wearing time and measurements.
After six months, I had accumulated roughly 600 hours of use.
I bought the Ultimate version, and my first impression was positive. The device felt well made, and the materials seemed durable. Everything was properly packaged, and I had all the parts I needed to get started.
One thing I quickly learned was that consistency mattered more to me than trying to rush the process. I started with 900 g of tension, which I found comfortable.
From there, I gradually increased the tension as I became more accustomed to wearing the device. By the later months, I was able to work up to around 2,800 g.
Here is how my experience developed month by month.
Month 1 – Getting Used to SizeGenetics
The first month was mostly about learning how to use SizeGenetics properly.
I started at 900 g of tension because it felt comfortable and gave me a good starting point. I did not want to immediately push the tension higher.
Instead, I focused on getting used to putting the device on correctly, securing the grip, and finding a position that I could maintain for several hours.
At first, putting everything together took some time. The grip and positioning were not completely intuitive for me. However, after a couple of weeks, I became much more comfortable with the process.
In the beginning, I used the device 5 days per week. On the first day, I wore it for only 15 minutes.
But I gradually increased the time. By the end of the first month, I was up to 3 hours per session.
I also found that I preferred wearing it while lying down. That position simply felt more comfortable for longer sessions.
I did not expect a major change after only a few weeks. My starting measurement was 6.2 inches, and toward the end of the first month, I was still around 6.2 inches when measuring consistently.
For me, the biggest achievement during the first month was establishing the habit.
I also started keeping records in a spreadsheet. I logged my hours, measurements, and general observations.
This became extremely useful later because it allowed me to look at my progress objectively rather than relying only on how things felt from one day to another.
I also discovered that a small amount of talc powder helped with the application and made getting the device into position easier.
Overall, Month 1 was about patience, technique, and building a routine.
Month 2 – Building Consistency
By the second month, using SizeGenetics felt much more natural.
I was still wearing it around 5-6 days per week, with sessions generally lasting 3-5 hours. Since I was now comfortable with the initial 900 g tension, I gradually started increasing it.
I did not make large jumps. Instead, I increased the tension progressively as my body became accustomed to the device.
This was important because I wanted to be able to complete my sessions consistently rather than increase the tension too quickly and then need to take several days off.
My measurement at the end of the second month was approximately 6.3 inches.
That was only a small difference from where I started, but it was encouraging. More importantly, I was becoming much more confident with the device itself.
Putting it on was faster. Adjusting the grip became easier. I also knew which position worked best for me.
At this stage, I still considered the process very much a long-term project. I was not expecting dramatic results after eight weeks. Instead, I was looking at my total wearing time and trying to stay consistent.
One thing I particularly liked was being able to see everything in my spreadsheet. I could look back and see how many hours I had accumulated and compare measurements over time.
That made the process feel much more structured.
Month 3 – Starting to Notice a Difference
Month 3 was when I started feeling that the effort was beginning to pay off.
By now, SizeGenetics was a normal part of my routine. I no longer spent much time thinking about how to put it on. The process had become almost automatic.
I continued increasing the tension gradually rather than making sudden changes.
My measurement was now around 6.5 inches.
The increase was not huge, but it was enough to make me take notice. Because I had recorded my original measurement of 6.2 inches, I had a clear reference point.
This was also around the time when I became more confident about continuing with the program long term.
The device itself was holding up very well. I had not experienced problems with parts breaking or becoming unusable. It still looked almost new despite regular use.
Comfort had also improved considerably compared with the first month. I knew how to position everything and how to make small adjustments during a session if necessary.
At the same time, I remained careful about the tension. I understood that increasing the number simply because I wanted faster results was not necessarily the right approach.
The goal was to accumulate consistent hours over time.
That mindset made a big difference for me.
Month 4 – More Noticeable Progress
Month 4 was probably the point where the progress became more noticeable to me.
I had now accumulated a significant number of hours, and my measurements were continuing to move in the right direction. My measurement at this stage was approximately 6.7 inches.
By this point, I had also gradually worked my way up from the original 900 g tension. I was using considerably more tension than when I started, but I had increased it progressively as I became more comfortable with the device.
I never viewed the tension number as a target that I had to reach as quickly as possible. For me, comfort and consistency were more important.
My routine remained fairly stable. I usually used SizeGenetics five or six days each week and aimed for several hours per session.
I also began noticing some changes beyond the measurements. There appeared to be some increase in girth as well, although length was always the main thing I was tracking.
Another thing I noticed was a change in my confidence. Seeing the measurement gradually move from 6.2 inches toward the high sixes made the whole process feel worthwhile.
I was also more comfortable talking about the results because I had actual records to look back on.
The spreadsheet became one of the most useful parts of my routine. Instead of wondering whether anything had changed, I could look at the numbers and see the overall trend.
Month 5 – Staying Consistent
By Month 5, I was well into the routine and had stopped thinking about SizeGenetics as something temporary.
At this point, my measurement was around 7.0 inches.
That was a significant milestone for me because it meant I had gained roughly 0.8 inches from my original 6.2-inch measurement.
My tension had also continued to increase gradually. I was now using 2,000g, eventually working toward the higher levels that I could comfortably tolerate.
I continued following the same basic schedule. Five or six days per week. Around four to six hours per day. I found that this was a realistic routine that I could maintain without it taking over my entire day.
At this stage, I was approaching the 500-hour mark.
Looking back at my original 6.2-inch measurement, seeing approximately 7.0 inches on the tape measure was very motivating.
I knew I still had more work to do, but the progress was becoming difficult for me to dismiss as simply day-to-day variation.
Month 6 – Reaching 7.3 Inches
Month 6 was the most rewarding month of the entire process.
By this point, I had accumulated approximately 600 hours of use. I had also gradually increased my tension from the original 900 g to as much as 2,800 g.
The important part, however, was that I did not start at 2,800 g. I worked up to it gradually as I became more accustomed to the device.
My final measurement after six months was 7.3 inches.
Compared with my starting measurement of 6.2 inches, that represents a total increase of approximately 1.1 inches.
Seeing 7.3 inches on the tape measure after starting at 6.2 was obviously the biggest highlight of the entire experience.
The progress was not perfectly linear. Some weeks seemed more productive than others. That is one reason I think keeping records was so useful.
I also noticed some increase in girth during the six months.
In addition, I personally felt that my erections were harder and lasted longer.
Whether that is directly related to using the device or simply my own experience is difficult to say, but it was something I noticed during the later part of the six-month period.
The biggest difference, though, was confidence.
A physical change is one thing, but seeing measurable progress after consistently following a routine made me feel much better about myself.
The device itself also deserves credit. After six months of regular use, mine still looked almost brand new. I did not have problems with components failing, and the materials continued to feel high quality.
Customer support was another positive part of the experience. Whenever I had a question, I received a helpful response.
What I Would Tell Someone Starting SizeGenetics
If I could give one piece of advice to someone starting SizeGenetics, it would be to follow the startup program and be patient.
There is no reason to rush the tension.
I started at 900 g because that was comfortable for me. You can start with less if that is more comfortable for you.
Over time, I gradually increased it and eventually reached around 2,800 g. The important thing was allowing myself time to adapt.
I would also recommend tracking your hours.
I used a spreadsheet throughout the entire process, and it helped me stay accountable. I could see exactly how much time I had invested and compare my measurements over several months.
Regular measurements are useful too. However, I would avoid measuring constantly. I preferred looking at the longer-term trend rather than worrying about small changes from one measurement to the next.
Cleaning the device regularly is also important. I cleaned mine after use and kept the components in good condition.
Finally, give yourself time to get comfortable with the application process. At first, putting the device on and securing the grip took some practice. Eventually, it became routine.
After six months, I am glad I stuck with it.
Starting at 6.2 inches and reaching 7.3 inches gave me a total increase of 1.1 inches. The process required patience and consistency, but for me, the results have made the effort worthwhile.
If I had one regret, it would simply be that I did not discover SizeGenetics years earlier.
What Is SizeGenetics?
SizeGenetics is a penile traction device designed to apply controlled, adjustable stretching tension to the penis.
Unlike pills or creams, it is a mechanical device that is worn for a period of time according to the manufacturer’s instructions.
The basic principle is simple. The device uses a combination of an adjustable frame, elongation bars, a front piece, and a support system to maintain gentle traction.
The tension can then be adjusted as the user becomes more accustomed to wearing it.
One of the main features of SizeGenetics is its modular design. Different elongation bars can be added or removed to adjust the overall length of the device.
The system also includes comfort and protection components designed to make longer wearing sessions easier.
SizeGenetics is available in several configurations. The main differences are the number of accessories, comfort components, and additional products included with each package.
Here is a closer look at the available options.
SizeGenetics Value Edition
The Value Edition, also referred to as the Starter Package, is the basic configuration. It contains the main SizeGenetics Type 1 medical device together with the essential accessories needed to begin using the system.
The package includes:
1 × SizeGenetics Type 1 Medical Device
1 × Product case
1 × Dual-function front piece
1 × Comfort strap
1 × Protection pad
1 × Silicone tube
2 × 1-inch / 2.5 cm elongation bars
2 × 2-inch / 5 cm elongation bars
1 × SizeGenetics Quick Start Guide
This package is focused on the basic device and the components needed for everyday use.
It is therefore a straightforward option for someone who wants the SizeGenetics system without the additional accessories found in the more extensive packages.
The included elongation bars allow the device to be adjusted to different configurations. The comfort strap, protection pad, and silicone tube are designed to support the wearing experience.
SizeGenetics Comfort Package
The Comfort System builds on the basic package by adding several components intended to improve comfort and flexibility.
It includes:
1 × SizeGenetics Type 1 Medical Device
1 × Luxury leather case
1 × Dual-function front piece
1 × Silicone tube
1 × Comfort strap
1 × Protection pad
2 × 1-inch / 2.5 cm elongation bars
4 × 2-inch / 5 cm elongation bars
2 × 0.5-inch / 1.25 cm elongation bars
1 × No-Slip Protech
1 × SizeGenetics Quick Start Guide
The biggest difference compared with the Value Package is the expanded selection of elongation bars.
The Comfort System includes 0.5-inch, 1-inch, and 2-inch bars, giving the user more options when configuring the device.
It also comes with a luxury leather case and a No-Slip Protech component. These additions make the package more comprehensive than the basic Value Edition.
For someone who expects to use the device regularly, having more adjustment options can be useful because the setup can be modified gradually rather than relying on only a few bar combinations.
SizeGenetics Ultimate System
The Ultimate System is the most comprehensive standard SizeGenetics package.
According to the package information provided, it is FDA-registered and CE-certified and includes the traction device together with a larger collection of accessories and comfort products.
The package contains:
1 × SizeGenetics traction device
1 × Luxury leather storage case
1 × Travel case
1 × Dual-function front piece
1 × Silicone tube
1 × Comfort strap
1 × Protection pad
2 × 0.5-inch / 1.25 cm elongation bars
2 × 1-inch / 2.5 cm elongation bars
4 × 2-inch / 5 cm elongation bars
1 × No-Slip Protech
1 × 3M Advanced Comfort Plaster
1 × Accellerate Cream Moisturizer
1 × Accellerate Traction Talcum Powder
1 × SizeGenetics Quick Start Guide
The Ultimate System is designed to provide the most complete setup for regular users. In addition to the main device, it includes both a luxury storage case and a travel case, making it easier to store or transport the system.
It also provides the full range of elongation bars. This includes 0.5-inch, 1-inch, and 2-inch options, allowing for more gradual adjustments.
Another difference is the inclusion of additional comfort and care products, including the 3M Advanced Comfort Plaster, Accellerate Cream Moisturizer, and Accellerate Traction Talcum Powder.
Ultimate System also comes with the SizeGenetics™ Slow Start-Up Schedule. This is a progressive 6-week program.
It begins with low tension and short sessions. Then it gradually increases as your body adapts.
The schedule follows the clinically studied protocol. That protocol involves roughly 4 to 6 hours of daily wear. This approach lets a new user build toward full sessions safely.
This is the package I used, so the Ultimate System is the configuration I will refer to when discussing my personal experience throughout this review.
SizeGenetics Penile Curvature & Peyronie’s Edition
The Penile Curvature & Peyronie’s Edition is a specialized version of the SizeGenetics system intended for users looking specifically for a configuration associated with penile curvature and Peyronie’s disease.
The package information lists the following components:
1 × SizeGenetics medical traction device
1 × Luxury leather travel case
1 × Dual-function front piece
1 × Silicone tube
1 × Comfort strap
1 × Protection pad
1 × No-Slip Protech
2 × 0.5-inch / 1.25 cm elongation bars
2 × 1-inch / 2.5 cm elongation bars
4 × 2-inch / 5 cm elongation bars
1 × 3M Advanced Comfort Plaster
1 × SizeGenetics Quick Start Guide
This edition also comes with additional bonuses:
2 × Extra silicone tubes
1 × Extra dual-function front piece
1 × Gauze
1 × Extra 3M Comfort Plaster
2 × Accellerate Boost supplements
The main difference is its positioning as a specialized edition rather than simply a more extensively equipped standard package.
It includes the same broad range of elongation bars as the Ultimate System, together with additional replacement and comfort components.
Because Peyronie’s disease is a medical condition, anyone considering a traction device specifically for curvature should discuss its use with a qualified healthcare professional rather than relying solely on product information.
Which SizeGenetics system to choose?
Choosing the right SizeGenetics package comes down to a simple truth.
Every package includes the same core device and the same tension range of 900 to 2,800 grams.
The differences lie in the accessories and comfort features you receive.
The Core Device Stays the Same
First, let me clarify something important. The device itself does not change between packages.
The spring mechanism, the rods, and the dual-function front piece remain identical.
The basic model and the premium packages all deliver calibrated tension.
So you are not buying a weaker or stronger device. You are buying different levels of comfort and convenience.
Start with the Ultimate System
I recommend the Ultimate System for most users. It includes everything from the Comfort Package plus extra accessories.
You get additional elongation bars in different lengths. This matters because the right rod combination makes a huge difference in comfort and fit.
You also receive the No-Slip Protech, extra silicone tubes, and the 3M comfort plaster. These extras help you find the attachment method that works best for your anatomy.
The Ultimate System also includes a travel case and moisturizer, which normally cost around $50 on their own.
When the Peyronie’s Package Makes Sense
If you have Peyronie’s disease or a noticeable curvature, the Peyronie’s Disease Home Treatment package deserves your attention.
It includes two dual-function front pieces, three silicone tubes, extra comfort plaster, and gauze.
The additional front pieces let you switch attachment styles if one causes discomfort.
For men dealing with curvature, comfort and flexibility matter even more.
This package also includes special supplements designed to support tissue health.
The Value of Comfort Accessories
You might wonder whether the extra accessories are worth the higher price.
Based on my experience and user feedback, the answer is yes.
Many users report that the silicone tube combined with the comfort pad provides the most comfortable experience.
The No-Slip Protech prevents the device from slipping during wear.
Without these accessories, you might struggle to achieve the 4 to 6 hours of daily wear that clinical studies recommend.
Discomfort leads to shorter sessions. Shorter sessions lead to slower results.
My Recommendation
If you are new to traction therapy, choose the Ultimate System. The extra rods and comfort accessories give you the best chance of finding a comfortable fit.
If you have Peyronie’s or a pronounced curve, choose the Peyronie’s package instead. Both options include the same proven device.
The accessories simply make the journey easier and more sustainable.
Remember that patience matters more than any package upgrade. Clinical studies show gains of 1.3 to 1.9 cm with consistent use over months.
The device works. The accessories help you stick with it.
How to use SizeGenetics?
Using SizeGenetics starts with a simple setup, but the real key is a slow, patient start-up period.
The goal is to let your body adapt to the tension before you push for longer sessions.
Getting the Device Ready
First, you need to measure yourself. The manufacturer’s guideline is to subtract 1.6 inches from your erect length to find your initial user size.
You then assemble the metal rods to match that measurement.
Most users start with a device length that is about 1 inch longer than their stretched flaccid penis.
The kit includes comfort accessories like a silicone tube, a strap, and protective pads.
Many users find the silicone tube or a strap combined with some padding provides a secure and comfortable grip.
How to Put on Sizegenetics
The application process takes a bit of practice, but it gets easier.
First, make sure you are clean and dry. Some users apply a little powder to help the strap grip better.
Next, you compress the springs on the device and strap your penis head (glans) into the front piece.
Secure it snugly but not painfully tight. Once it is attached, you slowly release the compressed springs.
This creates the gentle, calibrated stretch. You should feel a stretch, but it should not be painful.
The Crucial Start-Up Schedule
This is the most important part. You must follow a progressive schedule to avoid injury.
For the first week, you should only wear the device for a very short time, around 15 to 30 minutes, using the minimum tension. The goal is simply to get used to the feeling.
Over the next few weeks, you gradually increase both the wear time and the tension.
After about two weeks, you might be comfortable wearing it for up to an hour at a time.
By weeks four to six, you can build toward longer sessions, eventually reaching the clinical protocol of 4 to 6 hours of daily wear, split into several blocks with short breaks in between.
Always listen to your body. If you feel sharp pain or your glans turns cold or numb, remove the device immediately.
Patience and consistency are the keys to using SizeGenetics safely and effectively.
How Penile Traction Therapy Works?
Penile traction therapy works by applying controlled mechanical force to the penis over time.
This process triggers a biological response called mechanotransduction. In simple terms, the cells sense the stretch and respond by remodeling the tissue.
When you apply traction, the mechanical strain activates fibroblasts in the tunica albuginea (the fibrous sheath around the erectile chambers).
These cells then reorganize collagen fibers and reduce plaque stiffness. Research using cell culture models confirms this.
Traction applied to Peyronie’s disease cells increased matrix metalloproteinases (MMPs), which are enzymes that break down fibrotic tissue. It also decreased TIMPs, which are proteins that promote fibrosis.
When you wear SizeGenetics, it delivers a gentle, controlled pull. Your body interprets that as a cue to adapt. Cells divide and multiply.
Over time, that process creates new, lasting tissue.
This is genuine growth, not a temporary stretch. It does not fade once you remove the device.
Clinical Research on Penile Traction
The clinical results reflect this mechanism. Studies show average length gains of 1.5 to 2.3 centimeters with modern devices like SizeGenetics.
Clinical research on penile traction therapy shows consistent, measurable results across multiple studies. Let me walk you through what the data actually says.
The most robust evidence comes from randomized controlled trials.
One landmark study followed 110 men with Peyronie’s disease for three months. Men who used traction therapy gained an average of 1.5 cm in penile length.
Their curvature decreased by 11.7 degrees compared to controls. Erectile function scores improved by 4.3 points, while the control group actually lost 0.7 points.
Another randomized trial looked at men after prostate surgery. After five months of traction use, participants gained 1.6 cm in stretched penile length. The control group showed no change. Notably, 87% of men said they would repeat the therapy, and 93% would recommend it to others.
A systematic review and meta-analysis pooled data from multiple studies. At three months, penile curvature improved by an average of 16.97 degrees. At six months, the improvement averaged 13.04 degrees.
The researchers noted a potential dose-response relationship. Men who used traction for 3 to 8 hours daily achieved the greatest improvements.
In all studies side effects remain mild and temporary. The most common complaints are skin redness and glans numbness. No serious complications or therapy discontinuations appeared in the pooled data.
The bottom line: clinical research supports penile traction therapy as a safe, effective option.
It reduces curvature, restores length, and improves erectile function. Results are consistent.
What is the Optimal SizeGenetics Tension
Finding the optimal tension with SizeGenetics comes down to one simple principle: you want the lowest effective tension that still produces a visible stretch, not the maximum the device can deliver.
The evidence suggests that safe tissue remodeling happens roughly between 900 and 1,500 grams of force.
This is the range used in clinical studies that produced measurable gains. Going above this range does not necessarily speed up results.
Your first two weeks are about adaptation, not growth. Start at the minimum tension setting and focus on getting the strap or silicone tube fitted correctly.
Discomfort during this phase usually means you have the wrong settings or have worn the device too long.
Do not chase higher tension numbers. Instead, aim for a consistent, gentle stretch that you can maintain for your full session.
Most users find that they can comfortably wear the device for about an hour at a time after two weeks, gradually building toward longer total daily wear.
Tension vs. Time: What Actually Drives Gains
The relationship between tension and time is not linear. Clinical protocols typically involve 4 to 6 hours of daily wear to see results.
If you push tension too high, you cannot wear the device long enough to accumulate that necessary time under tension.
One user noted that maxing out tension was unbearable after 60 minutes, forcing shorter sessions that added up to less total time.
The key is finding a tension level that lets you complete your daily hours without pain or numbness.
One user who tracked his sessions found that recovery fatigue from high-tension sessions actually reduced his stretch the next day.
Practical Adjustment Tips
As your tissues adapt over weeks, you can add small rods to increase the starting length and maintain the same effective tension.
The springs compress as you strap in, and the rod markings show your tension level.
If you see the white indicator bands reappear during a session, you can advance to the next click to maintain the stretch.
Always remove the device if you feel sharp pain or if your glans turns cold or numb.
Is SizeGenetics Extender Safe?
When you look at SizeGenetics, the first thing you should know is that it is a medical-grade device.
It is registered with the FDA as a Class II medical device and manufactured by Danamedic in Denmark.
That classification places it in a category of products that carry moderate risk but also must meet certain regulatory standards.
The safety profile of penile traction therapy looks reassuring in the research.
The adverse effects are typically mild, transient, and self-limited. The most common complaints are skin redness and numbness of the glans.
While the device is safe overall, some users experience minor issues. You might feel some pain or discomfort, but this often signals improper use.
If the settings are wrong or you wear it too long, you will feel it.
Chafing around the head of the penis is another possibility, depending on how the strap holds it.
A small percentage of users in clinical trials reported temporary numbness or local pain.
None of these issues caused serious harm, and they resolved once users stopped using the device.
The key to safety with SizeGenetics is following the start-up schedule. The device can deliver tension up to 2,800 grams, but you should not start there. The manufacturer provides a progressive program.
In the first week, you use only minimum tension for short sessions. You gradually increase time and tension over weeks. Ignoring this schedule is the fastest way to experience discomfort.
Based on the evidence, SizeGenetics appears safe when you follow the instructions. The clinical research shows a consistent pattern of mild, temporary side effects rather than serious injury.
The main risk comes from user error, not the device itself. If you stick to the progressive schedule and listen to your body, you minimize the chance of problems.
Can You Sleep with SizeGenetics?
You should not sleep with SizeGenetics. The manufacturer explicitly advises against it.
A SizeGenetics representative on a support forum stated directly: “Do not wear a device while you sleep. When you are starting, rest at least every 45 minutes to restore blood circulation.” That guidance is clear and non-negotiable.
Clinical research on penile traction devices reinforces this warning. A pilot study on Peyronie’s disease patients instructed participants to use the device at least 6 hours and no more than 8 hours daily, while preventing its use during sleep.
Another clinical protocol required patients to remove the extender for at least 30 minutes every 2 hours to prevent ischemic injury to the glans.
The risk comes from the device’s design. SizeGenetics uses a strap or noose to hold the glans in place under tension.
If the device slips or shifts during sleep, or if you have a nocturnal erection, the strap can tighten. This can cut off blood circulation.
Wear SizeGenetics only when you are awake and can monitor the device. Follow the manufacturer’s recommended start-up schedule.
If you experience any discomfort, remove the device immediately. Safety always comes first.
Where to buy Sizegenetics extender?
You can only buy the authentic SizeGenetics extender through the official website.
This matters because third-party sellers often offer counterfeit devices, and you lose the manufacturer’s warranty and guarantees if you buy from them.
SizeGenetics offers four packages. The core device remains the same across all versions.
The differences lie in the accessories and comfort features you receive.
The Value Edition costs $199.95 and gives you the basic device.
The Comfort Package runs $249.95 and adds comfort accessories.
The Ultimate System costs $299.95 and includes extra elongation bars, a travel case, and moisturizer.
The Penile Curvature & Peyronie’s Edition also costs $299.95 and includes two dual-function front pieces, extra comfort plasters, and supplements designed to support tissue health.
The manufacturer offers a 2-year warranty covering manufacturing defects. If the device fails due to a manufacturer’s fault, you can request a replacement or spare parts.
The website supports payment methods like PayPal and major credit cards, which provide an extra layer of buyer protection.
SizeGenetics ships worldwide. Package arrives in plain, unbranded packaging for discretion, so nobody knows what you bought.
Delivery typically takes 3 to 5 business days for standard shipping, though it can sometimes take longer.
SizeGenetics Pros and Cons
SizeGenetics is a medical-grade penile traction device designed for length and curvature correction.
I used SizeGenetics for several months, and I want to share what I actually experienced. Here is my honest breakdown.
Pros
The Device Feels Sturdy and Well-Made
When I first unboxed it, I noticed the build quality right away. The metal rods, the springs, the straps -everything felt solid. After months of use, it still looked and worked like new. That matters when you are spending this kind of money.
The Tension Range Is Impressive
This device delivers up to 2,800 grams of calibrated tension. I actually went that high. Clinical research points to 900 to 1,500 grams as the sweet spot, and SizeGenetics covers that comfortably. I could always find a tension level that felt effective without being painful.
I Saw Real Length Gains
After 6 months of consistent use, I measured about 1.1 inches of additional length. That matched what the clinical studies predict. The gains did not disappear when I took breaks. They stayed. That was the most encouraging part.
The Money-Back Guarantee Gave Me Confidence
Knowing I could get a refund made the decision easier. I did not end up needing it, but it removed the fear of wasting money on something that might not work.
Shipping Was Discreet
The package arrived in plain, unbranded packaging. Nobody knew what was inside. That level of privacy mattered to me.
Customer Support Responded Quickly
I emailed support twice with questions about setup. Both times, I got a helpful reply within 24 hours. The same person answered both emails, which made the experience feel personal.
Cons
The Time Commitment Is Real
You need to wear this device for 4 to 6 hours daily. If you like, you can break those hours into smaller sessions throughout the day. Some days, life got in the way, and I missed sessions. Results slow down when you skip days.
Relatively High Price
I paid $299.95 for the Ultimate System. That is not cheap. You can go for the cheaper basic version, but it lacks the comfort options. More comfort means you wear it longer. Longer wear leads to faster and bigger gains.
Discomfort Happens
In the beginning, I felt pressure and occasional pinching. I had to adjust the strap multiple times to find a comfortable fit. It took about two weeks before I could wear it without constant fiddling.
Conslusion: Does SizeGenetics Work?
I used SizeGenetics for six months, and I want to give you my honest answer.
Yes, it works. But the results come slowly, and you have to put in the time.
This is not a magic device. It is a tool that rewards patience and consistency.
After six months of consistent use, I gained 1.1 inches. That is about 2.8 centimeters.
I started with 900 grams of tension and gradually increased it over time. By the last month, I was using the full 2,800 grams.
The gains did not disappear when I took breaks. That told me the tissue had actually changed, not just stretched temporarily.
The device delivers calibrated tension from 900 to 2,800 grams. Clinical protocols use the 900 to 1,500 gram range for safe remodeling.
I stayed in that range for most of my journey before pushing higher at the end. That approach worked well for me.
The device also helped with curvature. Pooled data shows a 27% average reduction in penile curvature for men with Peyronie’s disease.
I did not have curvature, so I cannot speak to that personally. But the evidence is there.
Of course, nothing is perfect. Some users feel discomfort, especially in the beginning. I did too.
The strap can pinch. The tension can feel awkward until you adjust. Your body needs time to adapt.
I had to reposition the device several times during my first two weeks. Some men experience redness or numbness if they wear it too long without a break.
But here is my bottom line. If you commit to the protocol, SizeGenetics works.
The device is well-made. The tension is calibrated and safe.
The clinical evidence supports the claims.
I recommend it. But only if you are ready to be patient.
This is not a quick fix. It is a real solution that takes real time.
FAQ
How long does it take to see results with SizeGenetics?
Most users notice the first changes within four to six weeks. However, real, measurable gains typically appear after three months of consistent use. Clinical studies show average length gains of 1.5 to 2 centimeters over six months. I used it for six months and gained 1.1 inches.
The key is patience. You cannot rush tissue remodeling. Your body needs time to build new cells. Stick to the recommended schedule. Wear it daily. Take breaks. And track your progress with measurements. Results come slowly, but they do come.
Can SizeGenetics increase girth as well as length?
SizeGenetics primarily increases length, not girth. The clinical research is consistent on this point. A 2009 study found significant length gains but no significant changes in penile girth. A 2015 study concluded that penile extenders are not recommended in patients seeking penile girth enhancement.
However, some users claim modest girth improvements. If girth is your main goal, this device is not the right tool. It targets the tunica albuginea to lengthen tissue. It does not expand the erectile chambers that determine thickness.
What is the optimal tension setting for gains?
The optimal tension range is 900 to 1,500 grams. Clinical protocols use this range for safe tissue remodeling. The device can deliver up to 2,800 grams, but you do not need to go that high for most of your journey.
I started at 900 grams and gradually increased over six months. I only reached 2,800 grams in my final month. The goal is the lowest effective tension that produces a visible stretch. Higher tension does not mean faster results. It can cause tissue tears and scar formation. Start low. Progress slowly. Listen to your body.
How many hours per day should I wear the extender?
Clinical protocols recommend 4 to 6 hours of daily wear. However, you should not start there. The manufacturer provides a progressive start-up schedule. In the first week, wear it for only 15 to 30 minutes at minimum tension. Gradually increase time over weeks. By the end of the first month, you might reach 3 hours per day.
Most users split their sessions into smaller blocks throughout the day. For example, wear it for one hour in the morning, one hour in the afternoon, and one hour in the evening. Consistency matters more than long single sessions.
What are the most common side effects?
The most common side effects are mild and temporary. You might experience skin redness, numbness of the glans, or minor discomfort. These usually resolve once you remove the device. Chafing around the head of the penis is another possibility, depending on how the strap holds it.
Some users report pinching or pressure during the first two weeks. That is normal as your body adapts. If you feel sharp pain, or if your glans turns cold or blue, remove the device immediately. Never ignore warning signs. Take breaks every 45 minutes to restore circulation.
Do the gains disappear if I stop using the device?
No, the gains do not disappear. This is not a temporary stretch. The traction triggers real tissue growth through a process called mechanotransduction. Cells divide and multiply. New tissue forms. When you stop using the device, that new tissue remains. My gains stayed.
That is the difference between traction therapy and temporary methods like pumping. Pumping gives you immediate but short-lived results. Traction builds permanent tissue over time. Consistency is key. Once you reach your goal, you can reduce maintenance sessions.
Can I wear the device if I have Peyronie’s disease or penile curvature?
Yes, and the device may actually help. Clinical research shows that traction therapy reduces penile curvature by an average of 27% in men with Peyronie’s disease.
SizeGenetics offers a specific Peyronie’s Edition package that includes two dual-function front pieces, extra comfort plasters, and gauze. The additional front pieces let you switch attachment styles if one causes discomfort.
If you have significant curvature, talk to your doctor first. But the evidence supports traction as a safe, effective option for curvature correction.
Where can I buy SizeGenetics and how much does it cost?
You can only buy the authentic device through the official website. Third-party sellers often offer counterfeits, and you lose the warranty if you buy from them.
The Value Edition costs $199.95. The Comfort Package runs $249.95.
The Ultimate System costs $299.95 and includes extra rods, a travel case, and moisturizer.
The Penile Curvature and Peyronie’s Edition also costs $299.95 and includes dual front pieces and supplements.
The manufacturer offers a 2-year warranty. Shipping is discreet and unbranded.
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