ProExtender

Description of the article « ProExtender »

Quick Answer

ProExtender is a rod-based penile traction device from Leading Edge Health — not a supplement. Unusually for this category, a study of the device itself exists: a 1998 symposium report (18 men) in which erect length rose an average of 2.8 cm — but the maker itself calls that study "preliminary," no control group is described, and the protocol was 12 hours a day, roughly double the 5–6 hours a day the maker's own Usage Guide tells buyers to wear it. The 6-month "Unlimited Growth" guarantee is real but conditional: no refund if the device is damaged in use or assembly, and the maker's guide frames refunds as following "diligent, documented use." Basic is $189, Deluxe $229. We score it 6.0/10.

Quick Reference

• Price: Basic Package $189 (retail $209), or 4 interest-free payments of $47.25. Deluxe Package $229 (retail $319), or 4 × $57.25 — adds bonus bottles of VigRX Plus and Semenax plus free USA shipping
• Guarantee: 6-month money-back guarantee — with conditions: no refunds if damaged in use or assembly; the maker's Usage Guide frames the refund as available after "diligent, documented use"
• Format: Rod-based traction device (surgical-grade steel, per the maker). Start-up program weeks 1–6 beginning at 1 hour a day at 1,200 g traction; then most men wear it 5–6 hours daily, per the maker's guide. Full course 4–6 months
• Traction settings: 1,200 g / 2,000 g / 2,800 g (marked settings in the maker's guide). Fit range: 4–22 cm in the stretched, flaccid state
• Maker: Leading Edge Health
• Best for: Men who understand traction is a months-long, hours-daily commitment, who will document their use, and who buy with the guarantee's conditions — not its headline — in mind

Our Verdict

ProExtender starts from a stronger position than most of this category: traction therapy has a genuine literature behind it, and this maker publishes a study of its own device with its methods stated — sample size, traction forces, protocol, follow-up. That transparency is rare, and we credit it. But the study is from 1998, involved 18 men, is labelled "preliminary" by the maker itself, describes no control group, and was presented at a symposium rather than published in a cited journal. Everything else the maker quotes — a 2008 British Journal of Urology line, a 2010 National Library of Medicine line, a Journal of Urology conclusion — is about penile extenders or traction therapy as a class, and one cited study (Gontero, Turin) used a different extender entirely.

Two gaps decide the score. First, the wear-time gap: the results the homepage advertises were produced at 12 hours a day, seven days a week; the instructions buyers actually receive say 5–6 hours a day. The homepage's "+19% girth" figure, meanwhile, does not appear in the maker's own study conclusions, which report length only. Second, the paperwork around the purchase: a homepage that promises "100% safety," "completely painless" and enlargement "without risking a penny," against a Usage Guide that anticipates soreness behind the glans, warns "don't go to extremes," conditions refunds on documented use, and excludes damaged devices — with no contraindications published anywhere, and no full kit list on the order page. A real device, a real but small and dated study, and marketing that consistently outruns both.

Sub-scores

• Construction & design: 6.0/10 — Surgical-grade steel and medical-grade positioning, calibrated traction markings (1,200 / 2,000 / 2,800 g), extension bars, a protection pad and comfort plaster named in the guide — but the maker publishes no full kit list on the order page, no named medical certification, and no warranty duration; the design is a basic rod-and-silicone-strap system whose own guide anticipates soreness behind the glans.
• Evidence: 6.0/10 — Unusually for this category there is a device-specific human study (Siana 1998: 18 men, +2.8 cm erect length, no complications) — but the maker calls it preliminary, it was a symposium presentation rather than a cited journal paper, no control group is described, and it used 12 hours a day, double the instructed wear time. The remaining citations support traction therapy or other extenders, not this device.
• Maker credibility: 7.0/10 — An established Leading Edge Health brand, an in-writing 6-month guarantee, and a results page that publishes full study methods — marked down for the internal contradictions: wear time, guarantee conditions, stale press-release pricing, and three different units-sold figures across its own copy.
• Safety: 4.0/10 — No safety section, no contraindications and no "see a doctor" warning on the sales pages (the guide says no doctor is needed), while the sales copy claims "100% safety," "completely painless" and "without risk of side effects" — contradicted by the maker's own guide and by a damage-based refund exclusion.
• Value: 6.0/10 — $189 Basic sits at the low end of the $100–$400 extender range the maker's own retail store states; it is a one-time purchase, and the 6-month guarantee nominally covers the full course the maker recommends — discounted by the documented-use refund condition, the damage exclusion, and a Deluxe upsell whose $40 buys two unrelated supplements rather than device upgrades.

What Is ProExtender?

ProExtender is a medical-grade penile traction device — two rings (base and glans) connected by adjustable rods — sold by Leading Edge Health as a non-surgical method for permanent penis enlargement in length and girth. The maker's stated mechanism: the device applies a gentle stretch (the "Traction Method") which "triggers a cell duplicating process (mitosis)," multiplying cells so the penis grows overall. The maker also claims harder, longer-lasting erections with regular use, and states the system was developed by Dr. Jorn Ege Siana, a specialist in penis lengthening, and has been sold since 1994. Its homepage sales claim is "over 565,000 extenders sold" — a maker claim we report as such; other maker-controlled copy variously says over 500,000 and "millions" (see Good to Know).

On curvature: the current homepage makes no direct Peyronie's or curvature-straightening claim. Peyronie's disease appears on the maker's pages only as a listed medical indication in the summary of the 1998 study, and in a site article saying extenders generally are designed to help men with a "crooked" penis. No curvature-correction percentage or degree claim is published. The maker's stated course: a start-up program over weeks 1–6, then steady wear, with a full course of 4–6 months — and, per the maker, results that "could indeed be permanent after stopping use, since the new cells created will still be present."

Design and Construction

This section replaces the ingredient breakdown we give supplements — for a device, what matters is what it is made of, how it adjusts, and what is actually in the box.

• Construction: a rod-based traction device the maker describes as "medical grade quality… made with surgical grade steel." The glans is held by a silicone tube/strap; the base sits against the body; extension bars are added or removed to lengthen the device as the course progresses.
• Traction: three marked settings published in the maker's Usage Guide — 1,200 g (mark 1, the stated starting traction), 2,000 g (mark 2) and 2,800 g (mark 3) — adjusted via a hexagonal piston/cylinder assembly and hand screws.
• Fit: the guide states the device fits 4 to 22 cm (1.6 to 8.6 inches) in the stretched, flaccid state, suits circumcised and uncircumcised men, and can be worn at any angle. Minimum purchase age 18; the maker states no upper age limit.
• Components named in the maker's own Usage Guide: extension/long bars, hand screws, the traction assembly, the silicone tube/strap, a Protection Pad (cushion under the strap), a "3M Advanced Comfort Plaster" for skin protection, and printed plus digital instructions.

What is NOT published: the order page carries no full kit list — the Deluxe package's "includes" list names only its two bonus supplements and free shipping, on top of the device itself, so exactly what arrives cannot be verified from the maker's pages. The homepage implies the device holds a medical certification (it warns against knock-offs with "no medical certification") but names no certifying body, CE mark, FDA status or registration number. And while the guide implies a warranty exists ("if the hand screw becomes undone, the warranty is void"), no warranty duration or terms are published.

What We Like

• A study of this device exists, with its methods published. Sample size, ages, traction forces, protocol and follow-up are all stated on the maker's results page. Almost nothing else in this category offers even that much checkable structure.
• The maker labels its own study "preliminary." A small honesty credit most makers would never give — though the homepage's presentation of the same study is considerably less cautious.
• Calibrated, published traction settings and a structured start-up program (weeks 1–6, building from 1 hour a day) — a more disciplined protocol than "wear it and hope."
• A one-time purchase at the low end of the category's price range — $189 against the $100–$400 extender range stated on the maker's own retail store, with no monthly refills.
• A guarantee window that matches the course. Six months nominally covers the full 4–6 month course the maker recommends — rare fit, even if the conditions (below) qualify it.

Good to Know

• The headline study ran at double the wear time you will be told to use. The 1998 study's protocol was 12 hours daily, 7 days a week, for 8 to 24 weeks. The maker's Usage Guide tells buyers that after start-up "most men wear it for 5–6 hours daily." The advertised results were produced — on the maker's own account — under a routine roughly twice as demanding as the one sold. There is no published study of this device at 5–6 hours a day.
• The girth figure is not in the study's conclusions. The homepage presents the study as "+29% length and +19% girth" with a "100% success rate." The maker's own results-page conclusions state length only: +2.8 cm erect and +1.9 cm flaccid on average, after 1,100 hours at 1,200 g. The +19% girth figure appears on the homepage and not in the conclusions it is attributed to.
• The other citations are not about this device. The British Journal of Urology (2008) and National Library of Medicine (2010) quotes concern penile extenders as a class; the Journal of Urology quote in the guide concerns traction therapy generally; and the Gontero (Turin) study the maker's own article cites used a different extender — about which the maker's article concedes it "did not live up to its claim."
• The guarantee has conditions the headline omits. The homepage says unhappy customers can "simply return it for your money back" and enlarge "without risking a penny." Its own guarantee section adds: "(No refunds if damaged in use or assembly.)" And the Usage Guide answers "Do you guarantee that it works for me?" with: the guarantee applies "[i]f you haven't achieved results after diligent, documented use." Keep records of your use from day one if you intend to rely on it. Whether return shipping is refunded is not published.
• Older maker prices still circulate. The maker's own April 2025 press release listed three tiers at $299.95 / $399.95 / $499.95. The current cart sells two packages at $189 / $229 and no top tier. The cart is current; the press-release and affiliate-listing prices are stale maker copy.
• The sales figures disagree with each other. 565,000 on the current homepage, "over 500,000" in the affiliate listing copy, "millions" helped in the site's own article. Treat all three as marketing, in descending order of caution.
• "Day or night" is homepage language. The homepage says wear it "at your leisure, day or night"; the Usage Guide publishes no sleep protocol and no break/rest schedule at all.
• No official instructional video is published on the maker's pages; instructions are print and digital documents.

Who Should Not Use It

The maker publishes no exclusion list and no contraindications for ProExtender — nothing on penile injury or skin conditions, bleeding disorders, implants, diabetes, medication, or when to stop. Its Usage Guide states affirmatively that the device does "not require experience or the help of a doctor," and its homepage claims "a record of 100% safety without injury," a "completely painless" process and a solution "without risk of side effects."

The maker's own guide does not fully agree with its homepage: it anticipates soreness and irritation behind the glans where the strap sits (hence the Protection Pad), warns "don't go to extremes," and the site's own article notes that extender use requires care "to prevent injury or permanent damage." Read the guide's caution over the homepage's absolutes. Our position, offered because the maker publishes no contraindications at all: this is a traction device carrying a Peyronie's indication in its own study summary — if you have Peyronie's disease, any penile injury or skin condition, a bleeding disorder, an implant, or diabetes affecting circulation or sensation, a conversation with a doctor comes before a purchase, whatever the sales page says about not needing one. The maker's stated minimum age is 18.

Where to Buy

Buy only from the official store so the guarantee applies: the official ProExtender store. The Basic Package is $189 (retail $209), or 4 interest-free payments of $47.25. The Deluxe Package is $229 (retail $319), or 4 × $57.25, adding bonus bottles of VigRX Plus (maker's stated value $69.95) and Semenax ($59.95) plus free USA shipping. Basic shipping costs, and any shipping outside the USA, are not stated on the cart page. Ignore the $149/$249/$497 and $299.95/$399.95/$499.95 prices in circulation — they are stale maker and listing copy; the current cart prices above are the maker's own. Before buying, read the guarantee as the maker publishes it in full: six months, no refund if the device is damaged in use or assembly, and — per the Usage Guide — refunds framed around diligent, documented use. Disclosure: if you buy through our link, we may earn a commission at no extra cost to you.

FAQ

Does ProExtender work?
There is one study of the device itself, as the maker reports it: 18 men aged 23–47, presented at a 1998 symposium in Barcelona, in which average erect length increased 2.8 cm (about 1.1 inches) after 1,100 hours of traction at 1,200 g, with no complications reported. The maker calls it a preliminary study; no control group is described; it was not published in a cited journal. The wider literature the maker quotes supports traction therapy in general, not this device specifically.

How many hours a day do I have to wear it?
Per the maker's Usage Guide: a start-up program over weeks 1–6 beginning at 1 hour a day at 1,200 g, after which "most men wear it for 5–6 hours daily." Note the gap: the study behind the headline results used 12 hours a day, 7 days a week.

How long until I see results?
The maker claims measurable results "in just 2 weeks" on its homepage; its guide says a noticeable increase in erection quality typically comes in the first 2–3 months at 5–6 hours a day, with a full course of 4–6 months. Its results timetable has lengthening becoming "noticeable and measurable" during weeks 4–12. Judge it across the full course, inside the 6-month guarantee.

Are the results permanent?
The maker's guide says results "could indeed be permanent after stopping use, since the new cells created will still be present," and that it is "not aware of any maximum." That is the maker's position, resting on the same small 1998 study.

Does it help with Peyronie's disease or curvature?
The maker's homepage makes no direct curvature claim. Peyronie's disease appears as a medical indication in the maker's summary of the 1998 study, and a site article says extenders generally are designed to help men with a curved penis. No curvature-correction figure is published, and the maker publishes no guidance on who with Peyronie's should or should not use it — if curvature is your reason for buying, that is a doctor conversation first.

Is it safe? Does it hurt?
The maker claims "100% safety," "completely painless" and no risk of side effects — and its own Usage Guide anticipates soreness and irritation behind the glans, supplies a protection pad for exactly that spot, and warns against going to extremes. No contraindications are published anywhere. We report both; the guide's version is the one to plan around.

What's in the box?
The order page does not publish a full kit list. The maker's Usage Guide names the device's components: extension bars, hand screws, the traction assembly, a silicone tube/strap, a protection pad and a comfort plaster, plus printed and digital instructions. The Deluxe package adds bonus bottles of VigRX Plus and Semenax and free USA shipping.

What does the guarantee actually cover?
Six months to return the device for a refund if you are unhappy with the results — except: no refund if the device is damaged in use or assembly, and the maker's guide frames the refund as following "diligent, documented use." Document your use from the start, and note that return-shipping treatment is not published.

Also Consider

• VigRX Plus — one of the Deluxe package's two bonus bottles, and on its own the best-documented daily formula in this range (a published placebo-controlled trial). Worth knowing what the "bonus" is actually worth before paying the Deluxe uplift.
• Semenax — the Deluxe package's other bonus: the established volume formula with a fully published label and a maker-reported study of the finished product.

Last reviewed: October 2026