陰莖牽引裝置套件 — SizeGenetics®終極系統（FDA註冊及CE認證）

✓ FDA-Registered & CE-Certified Medical Device  ·  ✓ 1,000,000+ Sold Since 1994  ·  ✓ 1-Year Warranty  ·  ✓ Money-Back Confidence Guarantee

The most complete penile traction device kit SizeGenetics makes. The SizeGenetics™ Ultimate System bundles the flagship SizeGenetics penile traction device with every comfort accessory, the full elongation-bar range, and a progressive 6-week training program — everything an adult man needs to apply penile traction therapy correctly, comfortably and privately at home. It is an FDA-registered and CE-certified medical device, Danish-engineered by Danamedic ApS, the manufacturer of record and the company that invented penile traction therapy in 1994.

What a penile traction device kit is

A penile traction device kit is a complete at-home system that applies sustained, calibrated mechanical tension along the penile shaft to support gradual tissue adaptation. The kit combines the traction device itself — a precision frame that holds the shaft under steady longitudinal load — with the comfort fittings, elongation bars and wear guidance needed for the long, repeatable daily sessions the therapy requires. The SizeGenetics™ Ultimate System is the most complete configuration in the SizeGenetics range: where the entry kits include the device and core accessories, the Ultimate System adds the full comfort set, the complete elongation-bar range, premium storage and a structured training schedule, so a first-time user has every part of the protocol in one box.

SizeGenetics has delivered penile traction devices to over 1,000,000 men since 1994, when Danamedic ApS brought the first penile traction device to market. The Ultimate System packages that 30-year platform into a single, guided kit.

How penile traction therapy works

Penile traction therapy applies a steady, comfortable stretch along the length of the shaft. The SizeGenetics™ device delivers straight, one-direction longitudinal traction — gentle, single-axis tension held over extended wear, never angled or directional. Sustained mechanical load is thought to stimulate mechanotransduction, the cellular process by which tissue converts mechanical force into a biological adaptation response, the same principle applied in orthopedic and reconstructive medicine. Chung & Brock (Therapeutic Advances in Urology, 2013) documented that mechanical traction drives "reorganization and remodelling of collagen fibres into uniform densely packed fibrils parallel to the axis of mechanical strain." Worn consistently over several months at roughly 4–6 hours per day, the device is designed to support gradual changes in penile length and girth. The wider science of how sustained tension reshapes penile tissue over time is covered in the SizeGenetics penile traction therapy guide.

Tension on the SizeGenetics™ system is adjustable. A new user starts gentle at around 900 grams (≈9 N) and builds, as comfort allows, toward a maximum of 2,800 grams (≈27 N) by adding elongation bars from the full set included in the Ultimate System.

What the clinical research shows about penile traction

Penile traction therapy is the subject of more than 15 peer-reviewed clinical publications. The therapy's strongest documented outcomes cover two areas: curvature correction in men with Peyronie's disease, and length recovery after prostatectomy. Peer-reviewed data on length gains in non-surgical settings exist but come from smaller studies in specific clinical populations — not the general healthy male population.

Two cohort studies reported length outcomes in non-surgical settings. Gontero and colleagues (Journal of Sexual Medicine, 2009, PMID 19138361) enrolled 15 men with stabilized Peyronie's disease wearing a penile traction device at least 5 hours per day; at 6 months, mean stretched penile length increased by 1.3 cm as a secondary outcome (the primary endpoint was curvature reduction). Nikoobakht and colleagues (Journal of Sexual Medicine, 2011, PMID 20102448) studied 23 men presenting with clinically reduced penile length, using a different traction device for three months; mean gains of 1.7 cm were recorded in both flaccid and stretched states (P<0.05). Both studies used specific clinical populations and different devices; they represent the best available non-surgical proxy data for how traction may affect penile length.

The most rigorous randomized evidence comes from a post-surgical context. Toussi and colleagues published a single-center randomized controlled trial in the Journal of Urology (2021, PMID 34060339) enrolling 82 men after radical prostatectomy, using the RestoreX penile traction device at 30–90 minutes per day. At 6 months, the traction group preserved and recovered significantly more penile length than controls — +1.6 cm versus +0.3 cm (p<0.01). This study documents post-surgical length recovery after prostatectomy, not enlargement in healthy men; 87% of participants said they would repeat the therapy and 93% would recommend it to others. Across the traction literature, reported adverse events have been mild and temporary, with no serious adverse events reported. These outcomes describe the therapy as studied in specific clinical settings; individual results with any at-home device vary, and the SizeGenetics™ Ultimate System is designed to support — not guarantee — gradual change.

A note on girth: the measured outcomes across the penile traction therapy literature are predominantly length gains — the cited studies tracked length, and the axial collagen realignment that Chung & Brock described aligns tissue along the line of pull. Some users and parts of the literature report modest girth change as well, but girth is far less consistently measured than length. It is best treated as a possible, variable secondary outcome rather than a guaranteed one, and individual results vary.

Why choose the SizeGenetics Ultimate System

• The most complete kit — the only SizeGenetics configuration that ships with the full comfort set, the complete elongation-bar range, premium leather storage and a structured training schedule together.
• FDA-registered and CE-certified medical device — engineered to a medical standard, not a novelty gadget.
• Straight, single-axis traction — steady one-direction longitudinal tension, the mechanism studied across the penile-traction literature.
• Comfort built for long wear — dual-function front piece, silicone tube, comfort strap, protection pad, no-slip fittings and a 3M advanced comfort plaster for the multi-hour sessions the protocol calls for.
• Adjustable tension force — start gentle at ~900 g and build to a maximum of 2,800 g (≈27 N) via the full elongation-bar set, as comfort allows.
• Guided start — an included progressive 6-week Slow Start-Up program removes the guesswork for first-time users.
• Discreet & at-home — no clinic and no surgery; the whole protocol is private.
• Backed by the brand — over 1,000,000 units sold since 1994, a full 1-year warranty and a money-back confidence guarantee.

How the Ultimate System compares to the other SizeGenetics kits

Every SizeGenetics edition is the same FDA-registered and CE-certified penile traction device — the traction device itself is identical, and the editions differ only in what is packaged around it. The comfort fittings and elongation bars are shared across the range, so the choice is about how complete a kit you want, not about a different device or a different mechanism.

The SizeGenetics™ Ultimate System is the most complete configuration, which is why it sits at the top of the range at $299.95 — a first-time user gets every part of the protocol in one purchase rather than buying accessories piecemeal later.

What's in the box

• 1 × SizeGenetics™ traction device (main unit)
• 1 × Luxury leather storage case
• 1 × Travel case
• 1 × Dual-function front piece
• 1 × Silicone tube
• 1 × Comfort strap
• 1 × Protection pad
• Full elongation-bar set: 2 × 0.5 in / 1.25 cm · 2 × 1 in / 2.5 cm · 4 × 2 in / 5 cm
• 1 × No-Slip Protech
• 1 × 3M Advanced Comfort Plaster
• 1 × Accellerate Cream Moisturizer
• 1 × Accellerate Traction Talcum Powder
• 1 × SizeGenetics™ Quick Start Guide
• 1-year warranty + money-back confidence guarantee

Included: 6-week Slow Start-Up training program

Every Ultimate System includes the SizeGenetics™ Slow Start-Up Schedule, a progressive 6-week program that begins with low tension and short sessions, then gradually increases as the body adapts. The schedule is built around the clinically studied protocol of roughly 4–6 hours of daily wear, so a new user can build toward full sessions safely rather than starting at maximum tension on day one.

Frequently asked questions

What is a penile traction device kit? It is the complete set of parts needed to run penile traction therapy at home — the traction device plus the comfort fittings, elongation bars and wear guidance — sold as one package rather than bought piece by piece. The SizeGenetics™ Ultimate System is the most complete version of that package, so a first-time user is not left sourcing missing accessories later.

How does the SizeGenetics Ultimate System work? In practice you set the tension with the elongation bars, fit the device comfortably, and wear it for a few hours a day, building up time using the included schedule. It holds the shaft under a steady, straight one-direction stretch that, over months of consistent wear, is designed to support gradual tissue change — the underlying mechanotransduction science is explained in the "how penile traction therapy works" section above.

Does a penile traction device actually work? The clinical literature on penile traction therapy reports measurable outcomes, with the strongest evidence in curvature correction and post-surgical length recovery. For length in non-surgical settings, Gontero et al. (2009, PMID 19138361) reported a mean stretched-length increase of 1.3 cm in Peyronie's disease patients as a secondary finding, and Nikoobakht et al. (2011, PMID 20102448) recorded 1.7 cm gains in men with clinically reduced penile length over three months. A randomized controlled trial by Toussi et al. (J Urol, 2021, PMID 34060339) found +1.6 cm length recovery versus +0.3 cm in controls post-prostatectomy, using the RestoreX device. These figures describe the therapy as studied in specific clinical populations; individual results vary, and consistent daily wear over the study period is what was required.

Are the results retained? In the published studies, the length measured at the end of the wear period was recorded at follow-up rather than reverting once the device came off, which is why traction is studied as a gradual tissue-remodeling approach rather than a temporary one. The evidence base is still limited and individual results vary, so SizeGenetics does not describe gains as permanent — only as the outcomes reported in clinical settings under sustained use.

How long until I see changes, and how long should I wear it? Penile traction therapy is gradual. Published studies in non-surgical populations used roughly 4–6 hours of daily wear over 3–6 months (Gontero 2009, PMID 19138361; Nikoobakht 2011, PMID 20102448), with length gains of 1.3–1.7 cm reported in those clinical settings. The included 6-week Slow Start-Up program eases you toward those daily wear times. Individual results vary.

How much tension should I use? Start gentle — around 900 grams — and build toward a maximum of 2,800 grams (≈27 N) by adding elongation bars from the included set, only as comfort allows. Worn correctly it should feel like a firm stretch, never pain.

Is it safe, and does it hurt? Worn at the recommended tension it should feel like a firm, comfortable stretch. Across the clinical literature, penile traction therapy reported only mild, temporary effects and no serious adverse events. Stop and consult a healthcare professional if you experience pain, numbness or discoloration.

Can it help with penile curvature? The straight longitudinal traction the device applies may support men managing penile curvature associated with Peyronie's disease; the purpose-built SizeGenetics Curvature & Peyronie's Home Treatment edition packages the same device with curvature-specific guidance. Curvature that is severe or painful, or active (acute-phase) Peyronie's, warrants a urologist's assessment before starting traction.

What makes the Ultimate System different from the other SizeGenetics kits? Configuration, not mechanism — every edition uses the identical device. The Ultimate System is simply the most complete box: it adds the full comfort set, the complete elongation-bar range, premium storage and the 6-week schedule, where the Value and Comfort editions cover narrower configurations (see the comparison table above).

Who is it for? The SizeGenetics™ Ultimate System is for adult men 18+ who want to apply penile traction therapy privately at home. It is intended to apply straight longitudinal traction only. Consult a healthcare professional before use if you have a medical condition.

Written by the Danamedic Medical Content Team · Medically reviewed by Dr. Jørn Ege Siana, Plastic Surgeon & Medical Advisor, Copenhagen — co-inventor of the original penile traction device (1994).

SizeGenetics is an FDA-registered and CE-certified medical device for use by adult men 18+. This device is intended to apply straight longitudinal traction only. Individual results vary. Consult a healthcare professional before use if you have a medical condition.