My SizeGenetics Review and Results (I gained 20% in 10 months)

SizeGenetics review score:
  • Efficiency
  • Comfort
  • Support
  • Price
  • Guarantee

Review Summary:

I’ve just finished my 10-month trial and I’m very happy with the results and can only recommend this product if you’re looking for a natural way to increase your penis size.

You can enjoy the size gains you get with SizeGenetics for the rest of your life because they are permanent.

I love the comfort system which is one of the best comfort systems (properly the best in the world) and that’s the single most important feature of a penis extender.

My results after using the SizeGenetics for 10 months:

  • 20% Longer penis – From 14cm to 16.8cm
  • 15% Thicker penis

SizeGenetics in hand

I recommend the SizeGenetics penis extender if you’re looking for a natural way to enlarge your penis.

User Review
4.67 (15 votes)

Table of Contents

My Personal Experience With SizeGenetics After 10 Months

I did an overview article of the SizeGenetics for Aiclegal’s penis extenders list in late 2018 and the device impressed me a lot – I decided to buy the extender and use it for at least 10 months to give a full-blown review of it and this is it – My personal review of SizeGenetics!

Why did I pick the SizeGenetics Extender?

This is a very good question when you consider the huge amount of different penis extenders that are available.

The main reason was the comfort system, that is among the absolute best (if not the best) of all penis extenders.

Why is a good comfort system so important?

The two most important things about how effective a penis extender is:

  1. How long time you worn the device
  2. And how much tension you have on it.

A good comfort system is important to both of them and that’s why good comfort is the single most important feature of a penis extender.

How does it work?

You are pulling your penis longer when you use a penis extender. The pulling force will promote cell division in your penis tissue hence making it both longer and wider.

Cell division is a very slow process and that’s why it’s important to use the extender for as long time as possible.

Let’s Assemble the Device

Before you can start using the device you need to assemble it and learn how to adjust the different tension settings.

sizegenetics extender parts
  1. Insert the “Tension springs” in the “Spring bars”.
  2. Screw the “Spring bars” into the “Extender front”.
  3. Select the “Elongation bars” that fit your penis size (more on that later) and screw them into the end of the “spring bars”.
  4. Attach the “Extender base” to the “Elongation bars” by turning the adjusting wheel clockwise.
  5. Attach one end of the “Comfort strap” to the “Extender front” (make sure you attach it the right way, there is a small arrow that indicates the right direction).
  6. You’re ready to use it
How to assemble the SizeGenetics

I have made a short video that you can follow if you are having trouble assembling it.

The final results should look like this:

The complete SizeGenetics in my hand

Got any problems with the assembly? Post a comment below and I’ll try my best to answer your questions within 1-2 days.

Tip: I strongly recommend that you assemble and disassemble it a couple of times before you use it – Just to get a hang of it and avoid breaking anything.

Selecting the right size elongation bar

The elongation bars are what determines how long the penis extender is – You’ll not be able to fit your penis in the device if you pick too long bars and you will not be able to put tension on it if you pick them too short.

Elongation bars

What size bars should I use:

  • Penis size 8 cm. – 10 cm. (3.15 in – 3.9 in) – Use the device without a bar.
  • Penis size 10 cm. – 12 cm. (3.9 in – 4.7 in) – Use the 1½ cm bar.
  • Penis size 12 cm. – 15 cm. (4.7 in – 5.9 in) – use the 3 cm. bar.
  • Penis size 15 cm. – 17 cm. (5.9 in – 6.7 in) – use the 5 cm. bar.

I do not recommend the use of an extender if your penis is under 8 cm. long.

TIP: You can use more than one bar if your penis is longer than 17 cm. (6.7 in).

How do I use the SizeGenetics?

Okay, the device is assembled at the right length and ready to go, but how do I use it?

  1. Take your extender put one end of the comfort strap in the front part and leave the other end hanging around.
  2. Place the base ring of the extender around your penis and press it towards your body.
  3. Put the other end of the comfort strap through the hole and tighten the strap around your penis just below the penis head (glans).
    This is also the step where you can use different parts of the comfort system, try different comfort options, and pick the one that you like and use it.
  4. Adjust the traction with the two wheels, move them clockwise for more traction or counterclockwise for lower traction.
    You can see the traction force on the hexagon bars, they have lines for each 300g. of traction force.

My daily routine

It’s important to get used to wearing the extender before you put too much traction force on. It’s the same as any other form of physical training.

Remember to measure your penis size (both length and girth) before starting, it’s very motivating when you start seeing your first gains.

I have split my extender sessions into 3 parts with an individual goal for each part – You can use the same technique if you like (it worked very well for me).

The first part – The beginning:

Main goal: Getting used to wearing the device and finding the most comfortable settings.

This part was the first 3 weeks and I used the extender from 1 to 3 hours each day with very little traction. I tried a new comfort setting each time I used the extender and found my favorite setting.

The second part – The buildup:

Main goal: Going from very little traction to maximum traction and increasing the time used to 8 hours each day.

This part took me 5 weeks where I increased the traction every week and increased the time, I spend using the extender from 1-3 hours to 6-8 hours a day.

The third part – The grind:

Main goal: Getting a bigger penis!

This is where all the “magic” happens apart from the fact that there is no magic only hard work and time will get you a bigger penis.

I used it with maximum traction and between 6 and 8 hours each day for 10 months! This is a very long and tedious task and you need a lot of determination to pull it off, but in the end, it’s all worth it!

I can enjoy a permanently larger penis for the rest of my life for the relatively “short” amount of time I spend on this project.

Tips: You can split up your extender sessions into more manageable blocks. If you’re going to use the extender for 4 hours that day and then split them into 4 x 1 hour or 2 x 2 hours, that’s all up to you.

My SizeGenetics results after 10 months

I went from a 14 cm. (5.5 in) long penis to a 16.8 cm. (6.6 in) long penis in 10 months.

my sizegenetics results length

This is the girth gains in the same time frame:

my sizegenetics girth results

How much can you gain?

It depends on several things:

  • What is your starting penis size?
  • How much traction do you use?
  • How many hours do you use it?
  • Other physical factors

I have used percentages in the graphs so you can get an estimate of how much you can gain in a specific time frame if you use it in a similar way as I did.

You will notice that if your penis has a smaller starting size then your gains will be equally smaller and if your starting size is bigger then the results will be equally bigger. This is because a larger penis simply has more tissue where the cell division happens.

Thoughts about using a penis extender for penis enlargement

Penis extenders are the most effective non-surgical way to increase your penis size, according to a Jsexmed.org1 study, SizeGenetics is in the top spot on my list of the best penis extenders.

But it’s not for everyone!

Using a penis extender is time-consuming and it does take a long time to get used to wearing the device. You need to be very motivated and keep using it, but the results will show in the end and it will be all worth it!

Important Cleaning

It’s not the sexiest thing to talk about, but cleaning is important because the device makes contact with your skin for hours each day.

I found that most dirt gets stuck in the joints between the metal and plastic parts near the base. Things do get dirty around the head but it’s much easier to clean.

dirt on sizegenetics

All the metal parts are made of non-corrosive materials which makes it a whole lot easier to clean. I usually just rinse my SizeGenetics device under running water and use a dishwashing brush and some soap to get rid of the dirt.

I just dry it off with a towel and leave it out to get rid of any moisture inside the springs and rods.

What I like about it:

  • I can now enjoy a larger penis for life
  • It’s a non-evasive treatment
  • I enlarged both the length and the girth of my penis
  • Fairly easy to get started

What I don’t like about it:

  • The comfort system is good but it can still be painful
  • It takes forever to see any real results
  • I found it difficult to get hours in due to a busy lifestyle
  • It’s quite expensive

How does it fair Against the Competition?

Update November 2023:

A lot has happened in the penis extender space in the last 3 years since this experiment. I’ve had the pleasure of testing a lot more products and the market has grown from a few good products to several great options that all can increase your penis size.

The one I’ve found best is the Quick Extender Pro which is based on the same design as the SizeGenetics but the springs in the Quick Extender Pro are much stronger which makes it a lot more effective.

Don’t get me wrong, the SizeGenetics extender is still a great option but I would personally go with the Quick Extender Pro if I had to choose the best penis extender right now.

My Final Thoughts About the SizeGenetics

After testing it for 10 months I can finally answer the question of: Do you recommend it to others?

Yes, it’s a solid product that delivers great results that you can enjoy for the rest of your life. It has changed my life for the better and given my confidence a huge boost.

Is it going to be a walk in the park? No, it does require a huge time commitment and a small investment, but the results are all worth it.

Join the thousands of men who use penis extenders today and start your journey to a larger penis now.

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Picture of Austin Hanson, M.D. Urology

Austin Hanson, M.D. Urology

After finishing a master degree in Urology at the European University in St. Petersburg, Austin cofounded in 2015. The purpose of the website is to help men with a wide variety of sexual problems with a language that everybody understand. Austin is a dedicated writer and loves to get his hands dirty with product reviews and the latest urology news. You can read more about me on my profile at Austin's author profile.

1 Response

  1. Hi, Thanks for pointing me in this direction. You’re review helped me getting started with the Sizegenetics stretcher.

    I took full advantage of the shutdown and working from home which is the perfect combination for penis extender use.

    I went from having a 5″ penis to a 6″ in a matter of 5 months which I’m very pleased with.

    All in all a great way to get some more out of my work from home experience.

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