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PeniMaster Pro Reviews: Is it effective for penis enlargement?

We carefully researched and tested the PeniMaster Pro to see if it provides long-term and significant increase in penis size.

Last Updated: Jan 4, 2022
penimaster pro reviews

Penis size is a contentious and anxious issue for many people – cultural and personal standards reinforce men’s insecurity that their penis sizes are inadequate and that their sexual performance will be found wanting. No matter how many studies you read about actual penis size averages, the nebulous terror remains: What if you don’t measure up?

Add to that the presence of medical conditions such as Peyronie’s disease (which causes painful curvature of the penis) and erectile issues occurring after prostate therapy, and it can be a nightmare navigating medical devices meant to increase penis size and function. One company, PeniMaster, offers an array of products that claim to add length and girth to your penis, as well as let you guide its shape as it expands. But will PeniMaster Pro actually get the job done, and is it worth the cost? Below, we show the results of our testing and research to help you decide whether this is the product you’ve been looking for.

Review Summary


  • Devices are FDA-approved
  • Effective for many users, relying on traction as a scientifically proven approach
  • Quite comfortable
  • Includes instructional DVDs
  • Ability to customize for your best experience
  • Great customer service


  • Cumbersome; not good for travel
  • Can require adjustment for uncircumcised users
  • Expensive compared to other options
  • Takes patience to see lasting results
  • Not the most intuitive penis extender to set up (referring to the instructional DVD is important)

Bottom line

Overall we’re impressed with PeniMaster Pro. If your goals are to increase the size of your penis and the strength of your erections, you’ll find that the PeniMaster Pro actually works and is comfortable to use (PeniMaster advises that if you’re experiencing pain while using their line of products, readjustment or discontinuation are almost certainly required). While not the least expensive penis enlargement device or the device with the highest tensile strength, the design of PeniMaster Pro brings added comfort, enabling you to wear it for longer periods and even making it possible to leave your device on to do its work while you sleep.

Our Top Picks

PeniMaster Pro

PeniMaster Pro really does work to enlarge the penis in length and girth. Not the least expensive, but more comfortable than many others.

As long as you make sure not to purchase just the “Basic” by mistake, we predict you will find these PeniMaster Pro devices very effective. PeniMaster delivers rod-, belt-, or weight-based traction with enough strength to succeed.

PeniMaster Pro Rod Expander
Reviewed by Innerbody Research
PeniMaster Pro Belt Expander
Reviewed by Innerbody Research
PeniMaster Pro Complete
Reviewed by Innerbody Research

Why you should trust us

Innerbody Research recently celebrated its 20-year anniversary online. Over the past two decades, we have helped tens of millions of readers make more informed decisions involving staying healthy and living healthier lifestyles.

We extensively test the health products we review. We try our best to give you, our readers, an unbiased exploration of at-home health products, free of marketing jargon or gimmicks. We evaluate the product based on our adherence to quality, the latest medical evidence and health standards, and a simple question: would we buy the product ourselves if it weren’t part of our job, and would we recommend it to loved ones?

Additionally, like all health-related content on this website, this review of PeniMaster Pro was thoroughly vetted by one or more members of our Medical Review Board for accuracy.

What is PeniMaster Pro?

PeniMaster Pro is a brand owned by German company MSP Concept GmbH & Co., which designs and manufactures urological and medical devices for both health-related and cosmetic purposes. The Pro line of products was created in 2011 in response to user feedback on its standard PeniMaster product. It comprises products based around traction and shaping as well as strengthening through the use of weights (a kind of “penis bodybuilding.”), and many of the products can be used in conjunction with one another to provide a more dynamic and well-rounded system for penis enlargement.

Is PeniMaster Pro legit?

A healthy amount of skepticism is a good thing to have when it comes to companies offering penis enlargement products; the internet is lousy with sketchy companies hawking elaborate lines of sugar pills and gewgaws meant to provide the illusion of effectiveness in order to move units. But PeniMaster Pro is the real deal, and it’s backed by clinical studies as well as FDA approval for its treatments.

Aside from PeniMaster Pro’s effectiveness, you can rest easy knowing that any problems you might run into while using your devices can be quickly addressed by PeniMaster’s helpful customer service staff. Our testers experienced friendly and prompt help from customer service, which is consistent with reviews from other customers making use of their devices.

Does PeniMaster Pro work?

Yes, PeniMaster Pro is effective for enlarging the penis both in length and girth. It takes advantage of traction, a penis enlargement method supported by rigorous research and studies proving its efficacy. The primary function of PeniMaster Pro is to add length to your penis through the use of belt tension devices and rods, although consistent use will also add girth over time.

PeniMaster Pro’s methods function along a few different axes: traction, weight, and fixation. Traction, as applied through PeniMaster Pro’s Rod Expander and Belt Expander systems, uses gentle stretching to hold the penis taut while allowing the body to become acclimated to the new length; weight-related methods use gravity and different weight sizes to enlarge the penis by stretching vertically; fixation methods hold the glans firmly and securely in place using vacuum, adhesion, and latex to prevent pinching or discomfort.

This isn’t a magic bullet, and the company doesn’t promise instantaneous and dramatic results (if they did, that would be a good clue to look elsewhere.) Their products are intended for use over a period of several months – many customers report substantial gains of an inch or more in penis size at around six months into using their products.

How does PeniMaster Pro work?

The program’s functionality is based on fixation of the glans and the application of pulling force to the shaft of the penis in order to enlarge and strengthen the tissue and provide increased growth as the body adapts to these stressors over time. This method uses the body’s natural cell-creation processes to add tissue to the penis as it adjusts to its new shape, and this applies to both flaccid and erect penises as the body adapts over time. PeniMaster Pro’s systems help ensure that this process is able to take place safely and effectively by combining clinically proven methods to produce a treatment system that actually gets the goods.

The design of PeniMaster Pro enables what’s called axial symmetry in the force applied to the penis. What this means is that there’s virtually equal tension acting on the penis at every part of the organ. This is important for sustaining comfort during treatment as well as achieving positive, natural results.

A few words about the mechanics

PeniMaster’s signature product, the PeniMaster Pro Basic, is a self-adapting connection between the glans and the penis, and it’s suitable for use by any age and glans size. The Pro line of products is built around this very cool and comfortable device. However, the device alone isn’t what delivers penis enlargement – a source of confusion for some customers. Our testers felt that the website doesn’t do a sufficient job right now of explaining the limitations of the PeniMaster Pro Basic (the bulb attachment) if purchased by itself; you really need the rod or belt expander system in order to achieve enlargement with PeniMaster.

Using the PeniMaster Pro

Our testers found the instructional DVD very useful in the case of PeniMaster Pro because it’s not the most intuitive device to set up the first time.

To use it properly:

  1. Spread 3-4 drops of lubricative fluid on the glans of your penis and the inside of the latex chamber before attaching.

  2. Squeeze the pump ball almost entirely and attach to the closed rotary valve.

  3. Turn the glans chamber and pump ball against each other; squeeze the pump ball to the limit.

  4. SLOWLY release squeeze, creating a gentle vacuum that pulls and holds your glans inside the chamber.

  5. Disengage the pump ball; make sure the valve remains shut.

  6. Set up the rod extender system; insert your penis (the suggested measurement starting out is your extended penis size plus 1.5 centimeters).

  7. Press in the extender rods, gently stretching the penis to clip the narrow section on the coupling socket. Traction is controlled via spring balance – lower traction uses shorter rods, and increased traction uses longer rods.

How long until you see results?

When it comes to how long it takes for your gains to start showing, results vary. After a couple months of routine use for hours each day, most people experience noticeable gains. Using the device for an average of 6 months is our recommendation for best results.

A lot of customers have reported seeing results within just weeks of applying the PeniMaster Pro, but it’s important to point out that gains seen within the first month or so are only temporary as your penis begins to adjust and respond to treatment. Permanent, long-lasting gains are typically seen at around six months of consistent use, both in length and thickness, and it’s crucial to keep up a steady routine of wearing the PeniMaster Pro at least a few hours each day in order to see long-term results.

Products and prices

PeniMaster Pro Basic – $223

This is PeniMaster Pro’s glans bulb attachment, which is a linchpin element of the other products for sale on the website but by itself does not achieve penis enlargement. This is very important to keep in mind; assuming you do not have your own weight system devised to use in conjunction with this bulb, we advise you not to buy this product.

This Basic device uses a self-adapting connection to the glans of your penis, and can work in conjunction with either rods or belts to increase the length of your penis (see the Pro packages below). It’s a well-designed element with the following attributes:

  • Anatomic bio function design
  • A combination of vacuum and adhesion
  • Easy to clean and maintain
  • Will stay put, even through sweat
  • Protects your foreskin
  • Can be used concurrently with belt and rods
  • Can be worn overnight

PeniMaster Pro Rod Expander – $322

The PeniMaster Pro Rod Expander is a rod-pulling force generator that includes the PeniMaster Pro Basic bulb. Collectively, this device lengthens the penis and increases the size and of your erection. Benefits of this package include:

  • Integrated pulling force measurement per spring balance
  • Adjustable for every penis length
  • Can be worn optionally in either upward or downward direction
  • Uses stable plastic materials
  • Can be worn discreetly in day-to-day life
  • No accessories needed
  • Able to be used overnight

PeniMaster Pro Belt Expander – $298

The PeniMaster Pro Belt Expander is extremely versatile and can be worn as either a hip belt, shoulder belt, or knee belt, depending on which configuration is most comfortable for you and for a number of purposes, both therapeutic and cosmetic. This package includes the PeniMaster Pro Basic bulb that attaches to your glans. It uses pulling force to gently stretch the penis and create positive traction. Its features include:

  • Combines PeniMaster PRO with special system belt pulling force generator
  • Can be worn discreetly in day-to-day life
  • Machine-washable
  • Clip attachment to multi-position anchors for maximum adjustability and variability
  • Maximum customizability as hip, knee, or shoulder belt
  • Able to be used overnight

PeniMaster Pro Complete – $370

For those who want the option of using the belts on some days and the rod system on other days, PeniMaster offers its Complete package, which comes with what you’d separately get in the rod or belt kits. At only $50 more than the cost of the rod system by itself, this kit is worth considering; you’ll be spending considerable time using the device and, this way, you’re more assured of avoiding fatigue, repetitive stresses, or simply frustration with the same exact routine each day over the months that you use it. Some men strongly prefer one system over another and are often surprised by their preference. Our testers overall tended to prefer the Rod Extender.

PeniMaster Pro Weight Expander – $360

The PeniMaster Pro Weight Expander works in conjunction with the Pro Basic and uses pulling force and gravity to stretch the penis downward. This package comes with a wide range of weights and settings from 250g to 1,250g. Its features include:

  • No counter-bearing on shaft of penis
  • Static weights for defined, consistent pulling force
  • No pressure on pubic bone
  • Slim, combinable weights
  • Able to be used overnight

Is PeniMaster Pro safe?

As with many (effective, legitimate) penis-enlarging products, the answer is yes – it’s perfectly safe as long as you follow the instructions and pay attention to what your body is telling you. At no point should you be experiencing significant discomfort from using any of the PeniMaster Pro line of products – each item comes with a detailed guide for how to safely and effectively get the most out of their use.

If applied incorrectly (for example, if the pulling forces are set too high before your penis is prepared for a higher level), a bluish discoloration may appear on your glans, which indicates coldness, numbness, or pain, and it’s best to remove the device until symptoms have improved before readjusting.

Privacy considerations

PeniMaster Pro takes your privacy very seriously.

  • All packages are shipped in discreet, neutral packaging without any product details
  • Website is fully secure for customer purchases
  • Information is collected entirely to process orders; they’ll never collect data elsewhere
  • Several different pay applications are available, including PayPal, Amazon, and Klarna, that will protect your payment information and privacy

How we evaluate home health products and services

At Innerbody Research, we customize our evaluation criteria depending on the type and nature of the health-related service or product. For PeniMaster Pro and other health products, we have five areas that we use for our evaluations, including:

Quality: How well does the company deliver its core service(s) to the customer? For testing services, does the company adhere to the latest and most advanced testing technologies and achieve a very high degree of accuracy? For non-testing telehealth services, is the quality of the service high enough that we would recommend it to loved ones without hesitation? If not, why not?

User-friendly: How intuitive and user-friendly is the service? Does the device, program, app, or website achieve a good degree of user-friendliness for its customers?

Value: Are you getting your money’s worth? Are there any hidden costs or charges? Does the company offer discounts?

Privacy: If health data is stored, will your data be stored securely? Are payments secure?

Customer support: Particularly in situations where ‘one size fits all’ doesn’t make sense, how well does the company help to make the service ideal for you?

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