SizeGenetics Review

The best penis extender on the market?

SizeGenetics Ultimate System

What is SizeGenetics?

The SizeGenetics extender is the original penis extension device.

Penis stretchers are also commonly referred to as penis extenders/penile extenders and penis extension devices but they all mean the same thing.

It can help extend the penis by inches.

When the SizeGenetics extender was first launched over 16 years ago, the device only option was all that was available, however, before long the “Ultimate System” was also added.

The key difference between the two is that the “Ultimate System” comes with a series of bonuses that make it excellent value for money.

Many of these bonuses are exclusive to SizeGenetics which gives it a significant advantage over its competitors.

How does Size Genetics work?

The Size Genetics extender uses traction to naturally make the penis larger – both in length and girth.

Traction is a clinically proven technique that is guaranteed to increase the size of your penis, by utilising the human body’s natural ability to grow and change.

If a certain part of the body is exposed to a constant stretch, the cells in this area begin to divide and multiply, thus increasing the tissue mass.

Why use SizeGenetics extender?

  • It can extend the penis by inches
  • The Size Genetics website also features before and after pictures of men who have been using the device.
  • It may also help you achieve harder, longer lasting erections.
  • It is recommended by surgeons worldwide who perform penis enlargement surgery.
  • The device is CE certified and classed as a Medical type 1 device with safety and efficiency assessed under the Medical Device Directive.
  • It has been extensively clinically tested and available for men of virtually all ages.
  • It is endorsed by doctors and used by surgeons worldwide.
  • It is supported by a clinical study conducted by the British Journal of Urology that discovered that a penis stretcher can increase penis size by up to a third.
  • It can help boost self-esteem and confidence in the bedroom
  • The Size Genetics penis stretcher was featured on British chat show The Jonathan Ross show where he described it as the “rolls royce of penis extension devices”.
  • Very fast distribution from the UK and the US so you won’t have to wait long on your device.
  • The SizeGenetics Ultimate System comes with various free bonuses like a free penis exercise program among others. Check out our table at the bottom of the page for the full list.
  • Should you decide that you are not happy with the device then there is a 6 month (180 day) guarantee and they have excellent customer service and aftersales experience.

Does SizeGenetics work?

Yes! The SizeGenetics device is based on the traction principle that has been around for centuries.

It was once a primitive method used by tribes all over the world to increase the size of lips, ears and necks as part of their cultural traditions.

Today the same principle is used by orthopaedic surgeons to correct uneven limb length such as leg length discrepancies.

Is SizeGenetics comfortable to wear?

Size Genetics have realised that in order to wear a penis stretcher for long periods of time then it must be comfortable to wear.

The longer you wear the penis stretcher then the better you’re gains will be. With this in mind they have developed the 16 way Ultimate Comfort System which means the device can be worn 16 different ways.

The SizeGenetics device also incorporates MDA technology (Multi Directional Angling) into their design which allows the device to be worn at different angles to best suit you.

Most other penis extenders only offer the one position to wear their extender which may not suit all penises.

The Ultimate System also comes with various bonuses such as Traction Plus Powder and Revita Cream that you may use for added comfort.

Is SizeGenetics medically endorsed?

Yes, as we stated above the SizeGenetics extender is medically endorsed by doctors and surgeons worldwide.

It has also been clinically tested to ensure its efficiency.

Also, the British Journal of Urology has carried out an independent study which proved a penis stretcher can increase penis size by a third.

Penis Extenders Do Work

Also, please see the link below:

SizeGenetics Accessories

The Size Genetics Ultimate System comes with numerous bonuses such as:

Does SizeGenetics come with a guarantee?

The SizeGenetics extender comes with a 6 month (180 day) guarantee.

If you try the device and see no improvement or simply don’t like it then return it and get your money back.

Many other manufacturers offer guarantees but they are rarely as long as 6 months.

SizeGenetics also have an excellent customer service and aftersales team.

It should be noted that while the Original SizeGenetics Device (Device only) and the Ultimate Package come with a 6 month money back guarantee, the budget package is excluded from the guarantee.

SizeGenetics is currently running a promotion where if a customer sends their before and after pictures they will get a complete refund.

NO other penis stretcher manufacturer is currently running this type of promotion.

This is another great reason to choose the Size Genetics device over other devices.

SizeGenetics Models

  • The SizeGenetics Ultimate System costs $299.95
  • The original SizeGenetics device costs $199.95
  • The Ultimate System is especially good value due to all the free bonuses you receive.

SizeGenetics Results

SizeGenetics Before and After
SizeGenetics Before and After

SizeGenetics Extender Pictures


Size Genetics Ultimate System

We rated the SizeGenetics Ultimate System number one in our reviews due to:

  • The excellent product quality of the device
  • It is medically endorsed by doctors and clinically tested
  • The Multi Directional Angling incorporated into the design that allows the device to be worn at different angles.
  • Is it very comfortable to wear for long periods of timedue to the 16 way comfort system
  • All of the free bonuses
  • 6 month (180 day) money back guarantee if you are not happy with the product.
  • The numerous positive testimonials we have received from men who are using the device and the before and after pictures on the Size Genetics site of real users.
Visit the Official SizeGenetics Website
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