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SizeGenetics – Reviews and Results (2021)

Welcome to Men’s Review Zone(MRZ)!

I am Mike.

Sizegenetics (official website) is one of the few products which I have tried personally and still remains one of my top 5 recommended products in male enhancement for serious users. If you are looking for verified customer reviews from our subscribers, check the comments section below the review. Before I get into more details about it in the detailed review, I would strongly advise you to NOT buy this product if you are casual(not serious) about your size issue as it takes months of patience and dedication to gain permanent 1-3 inches increase in length.

A lot of men these days would do anything to improve the size of their manhood. In fact, others would even go beyond convenience and comfort by undergoing cosmetic surgery. After all, size matters. However, there’s a better option in the market today and unlike surgery, these options are not invasive. These are the male enhancement products.

SizeGenetics is a type of extender that promises an increase in both length and girth when worn consistently for 8 months. Some of its users even claimed that it resulted to .5 inch gain in just one month of use! However, this does not mean that you stop wearing the device. Otherwise, the result will just fade away. In 6 months, expect to gain 1 inch and at 1 year of use, many claimed that it gave them 1.8 inches of increase. If you have been wearing the device for 12 months, the result can be permanent, even if you stop wearing Size genetics for a few days.


What is Sizegenetics? How does it work?

Sizegenetics is one of the first FDA approved penis extender device in the mass market. It works based on the same principle as building muscle on any other part of your body. When you lift weights to increase biceps, the weights basically break down the muscle tissues and replace it with larger tissue than before.Similarly, Sizegenetics stretches the penis using progressive mechanical traction over a period of time and increase the length of your penis up to 1-3 inches over a period of 6-12 months.

Penis extenders are popular for their long-term results (both clinical and anecdotal) compared to pumps as you can wear extender for several hours in a day compared to that of few minutes for a pump. But, extenders do not show temporary results from bloating, unlike pumps. Advanced users can try both pump and extenders.

SizeGenetics is also popular for the following conditions apart from the increase in length:

  • Micropenis syndrome
  • Bend penis syndrome

For those who want to correct their curved penis, you may try SizeGenetic. You will also be rewarded with more gains as you do so.

How to get the best price

As counterfeit products are rampant for the product in marketplaces(eBay or Amazon),it is recommended to buy only from the official website. You will get 40% off from the listed price when you buy from the official website (it happens automatically and no special discount coupon code is required).

How to Use Sizegenetics

One needs to wear SizeGenetics Extender for at least 3-5 hours daily, for more than 6 months to get visible results.You can take a break for 1-2 days in between when penis feels soar. It might be uncomfortable to start with and it would take 2-3 weeks to get used to it. You need to adjust the elongation bars according to your placid size so that penis feels the tension but not too tight to be uncomfortable.  Most of the times, you can get the right tension amount by trial and error process in initial days. It is important that you need to persist through initial days of discomfort. The more time y

The more time you can spend wearing the device, the faster you can notice your grains.

Its kit comes with a DVD that contains straightforward instruction on how to use the product. Here are the simple steps on how to use it.

  1. Fit your penis on the base ring.
  2. Put the elongated bars.
  3. Make sure that you insert the head of your penis in the headpiece.
  4. There are bands on the comfort straps, pull them.
  5. Make necessary adjustments making sure that you use the right size for a comfort fit.
  6. Be gradual in the amount of usage, starting at only 1 hour a day until you are okay wearing it at its recommended amount of time. It still takes a while for your member to get used to it.
  7. You can wear the device underneath loose clothes. Hence, you can let it do its work while you sit at home or work in your yard. Others even use this at night when they are asleep.

Does Sizegenetics really work?

Before I describe my personal experience, I would try to put due emphasis on the scientific basis of its results and evidence for the same. I studied various research and clinical studies on the device and found on conducted by 7 board certified urologists to be most credible.

A pilot phase-II prospective study to test the ‘efficacy’ and tolerability of a penile-extender device in the treatment of ‘short penis’[1]

What’s in the package

SizeGenetics come in different packages. All that’s left for you to do is to pick the one that meets your needs:

  1. Value Edition Package

If you have a tight budget then this is best for you. Its downside is that its elongation bars, straps and comfort pad can be uncomfortable after long use.  However, you have the option to purchase extra parts when you have more money to spare.


  • Stretcher
  • Instructional DVD
  • Default comfort pad
  • Elongation bars
  • Strap

2. Ultimate or Advanced Comfort System

Since this is comfortable, it is ideal for long term use. It’s very convenient to use too.


  • Multi-head piece – This includes head beds and parts that minimize friction and stabilize your penis’ head.
  • Traction Plus Powder – The powder is needed to create traction between the stretcher and the penis for a more comfortable amidst stronger pressure.
  • After care moisturizer – This is needed for tissue regeneration process.

3. Ultimate System Extras


  • Exercise DVD
  • 3M comfort plasters

Side Effects

As long as you follow the instruction provided by its manufacturers, the product will not cause any adverse effect. No report has been received that the product caused harm to its users. It is safe to use.

User Reviews

Effective yet very comfortable

“I have been wearing SizeGenetics for many months and can attest that it truly works”. After 2 months of use, I noticed 1 inch growth. However, this can only happen if you are willing to pay the price of wearing this every single day”- Julien

Amazing product

“I have just tried SizeGenetics for a few days now and noticed that it works. In fact, I am now more confident and in a good mood meeting new women if opportunity arise.” – Jia

Results are gradual but very consistent

“After 3 months of use, I noticed that my “member” has grown 1cm longer. But the device never failed me over months of use. Now, I have 13.9 cm length. But my goal is to lengthen my circumcised penis up to 15.6 cm” – pe doc

Where to Buy

You can buy SizeGenetics from its official website. Other resellers offer China made the product using plastic as its material. Getting the wrong product will be a waste of money, time and gives you a lot of frustrations!

SizeGenetics manufacturer will also give you a full refund (make sure you buy from official website)and the privilege to keep the device if after 6 moths of use, you send them a “before and after photos, However, this means you have to religiously document the changes of your penis’ size throughout the process. And the catch is that you need to have this device for 6 months!

Final Words

SizeGenetics has been on the market for 2 decades now. Any product won’t last this long if it is not effective. In fact, they are confident enough in their trade that they offer 6 months money back guarantee! No other company offers a warranty this long. In fact, it ends up not having to spend any centavo for the product since they are willing to send you a full refund after 6 months of using it; provided that you show before and after images to prove your claim. Surely with SizeGenetics, you have nothing to lose, just everything to gain.

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  1. Reply
    GG October 28, 2020 at 11:35 am

    Ok. Today marks the 6th month of my use of SG. I think it is a good time to report the results.

    It took me 2 months to get used to the feel of it and it is no longer an issue to put on the device. I can keep it on more than 6 hours without taking any break. Apart from that I doing KG and jelqing exercises to keep better control on my nerves. Overall,I have gained almost 2 cm and also I get better erection these days. Let us see how it goes in next 6 months. I would stop once I gain 4 inches.

  2. Reply
    jack November 4, 2020 at 1:43 am

    That’s really helpful information.

  3. Reply
    Big B November 23, 2020 at 6:46 pm

    I would to speak with this man named Mike, I do have a couple questions when it comes to which is the best penis pill and penis extender

  4. Reply
    Ramsayx December 10, 2020 at 11:03 am

    I had bought Penimaster PRO and really hated the quality of product. It both looked and felt cheap. There was hardly any strength.Thankfully,I got my money-back under guarantee and got SizeGenetics due to its proven clinical results. I am glad I did try SG and I feel better wearing it. People complaining about the pain must understand,without the proper stress,you would not see results. No pain,no gain. 🙂 I will post my update with my gains (hopefully) in a few months. Good luck.

  5. Reply
    rashid December 11, 2020 at 5:45 pm

    i used it for 5 months for 3 hours a day everyday. I ve got 2 cm increase yet but it is not that much visible unless I am super hard. Still,I am happy. I would recommend it.

  6. Reply
    unicxx December 18, 2020 at 10:49 am

    The price $350 of SizeGenetics is fu**** crazy for this piece of device. Are they really serious? I know it is a FDA approval device and there must be some serious design involved.But after all it is a piece of plastic. If they are taking so much of money,why these guys won’t make it more comfortable by investing some serious $$ on its design. I have been using it for a month and I know it is short period of time for any results. Given the degree of un-comfort, I hope I get some results in coming months. Final line would be if you are buying it,be ready to put up with it . If you do not have dedication,better do not spend money on SG.

  7. Reply
    NEO February 7, 2021 at 2:15 pm

    I have been using Sizegenetics extender for more than 9 months now and I can conclude now it does really work as far as permanent gains in length is concerned. It was not easy but seeing the gain of around 0.75 inches at the end of 9 months,it is quite satisfying. I used to wear it everyday. Just stick to the plan and keep using it for at least 6 months before checking results.

  8. Reply
    JJ February 14, 2021 at 5:45 am

    I am surprised that this review does not mention the most important part in SG ie amount of tension you put in penis. Thankfully,due to my past failed experience with other extenders,this time I focused more on tension on penis rather than longer duration. I have been wearing it for 3-4 hours/day with 1 hour intervals.Then, I slowly increase the tension over the 1 hour, so that in my next half I can fit more rods and increase tension. I then leave the device facing down and wait for a stretching sensation.

    I’m only 4 months into this but I’ve made gains thanks to this part of my workout.

    So,my advice to the people who have been frustrated with SG results,try decrease your time and increase the tension. Keep in mind that extender is a clinically tested device not some magic pill. So,before you give up,make sure you are doing it in a right way.

  9. Reply
    Mohammed April 5, 2021 at 1:01 pm

    This device sucks! Do not buy. Stay away. **** SCAMMERS!

  10. Reply
    Ron May 12, 2021 at 1:21 pm

    I feel like this SG thing is a scam.I mean almost scam. Unless you have a micropenis or something,I do not think it is worth the money. Stay away.

  11. Reply
    Anonymous May 23, 2021 at 5:56 am

    This device should work but due to the atrocious instructions on there -80p resolution dvd, I found out that I was weaing it wrong for months! Wasted my time. I will be trashing this and getting the higher quality Penis Master Pro, like I should have done in the first place. This thing is painful at times! The build quality it just sad. I will report back with my new PMP asap. Stay away from this medieval device! Noose stlye devices are not as good or comfy as vacuum style devices!

  12. Reply
    RobG May 28, 2021 at 2:22 am

    Someone linked here from Reddit about why SG is superior to others as far as results are concerned. Guys,a veteran user here. I am 28 and have been trying these devices for 2 years now . When I started,I had 3 inch flacid length and 5.5 inch when erect (though,I hardly used to get full erection due to PIED issue. That is another story) 2 years back. Now,I am 4+ inches placid penis length and 6.5 inches erect. These 2 years journey has been quite tough with lot of emotional and physical up and downs. One thing I would like to advise is to choose the product carefully and stick to it. While choosing a product,always look for clinical studies and scientific mechanism behind it rather than going by random reviews from bloggers or users. Do not focus a lot on comfort factor while choosing a penis extender. If you want some temporary gains to impress your new girlfriend,you may choose hydropumps like Bathmate etc. But,remember that most of these gains are temporary and they do not have any clinical studies backing behind these. When I chose Sizegenetics after 1 year of experiment with various pumps,I had hardly gained 0.25 inches. Finally,after choosing SG and using it for a year,I am touching 1+ inch gain now. Initial two months was rough but once I got used to it,one year was a smooth ride. Another point I want to add is to do not waste your money on pills to increase size. Some pills may be good for libido or ED issues,they do not have any effect on size.
    Good luck.

  13. Reply
    AnonJon May 30, 2021 at 12:21 pm

    I got decent results from SG after 8 months of continuous use. but I think it is too overpriced.But,I think almost all PE products are and those ebay stuff are too unreliable for these kind of stuff.

    It has a classic design which might be bit daunting to use initially. But you learn how to wrap at your head of your penis,it should be okay. Though I am happy with the results,I wish they improve the design and support were faster.
    Having said that you can clearly gain an inch with this extender and any other extender of similar style! I would also to advice keep doing jelqing and stretching exercise as well.

  14. Reply
    AnotherJD June 22, 2021 at 12:39 pm

    I bought Sizegenetics 2 months ago after reading one of the Phallosan forte user review here that SG is better than PF if you happen to have longer placid penis. I am not sure whether I made the right decision and the problem is I can’t wear this device for more than 3 hours at a time. I would stick to it for 3 months back before I try PHALLOSAN. I knew SG would be uncomfortable but did not imagine it could be so much. Another advice would be if you buy SG,always go for higher version which has all comfort features.

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