Limited Time Only: Participate in Our Clinical Trial and Get a Full Refund

Getting your X4 Labs Penis Extender for FREE is as easy as 1-2-3. Simply follow the steps below and we will gladly refund your order in exchange for your clinical study data. Once the study is complete the Penis Extender is yours to keep free of charge.
free-penis-extender
step-one-clinical
free-premium-penile-traction-therapy-device

Order the X4 Labs Penis Extender of Your Choice and Opt-In to Participate

Start by choosing any X4 Labs Penis Extender Edition of your choice. Check “Participate in Clinical Trial” in the options or enter Promo Code “CLINICAL” on checkout to opt-in. Simple as that. X4 Labs Starter Edition not eligible for Clinical Study Participation.
step-two-clinical

Track Your Growth Progress for a Full 6 Months of Usage

Keep record of your length and girth growth by using our simple X4 Labs Progress Tracker online tool. All you have to do is check in once every two days and enter your usage data and measurements. Also, you must include at least one progress photo per week of use. Please note that you have to track use of your device for 6 consecutive months in order to be eligible.
penis-extender-results-before-and-after
step-three-clinical

Log Your Usage, Add Your Photos and We Will Refund the Cost of Your Device!

Keep record of your length and girth growth by using our simple X4 Labs Progress Tracker online tool. All you have to do is check in once every two days and enter your usage data and measurements. Also, you must include at least one progress photo per week of use. Please note that you have to track use of your device for 6 consecutive months in order to be eligible.

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    X4 Labs Deluxe Edition
    View Product Details

    X4 Labs™ Deluxe Edition

    3.76 out of 5

    WHY CHOOSE THE DELUXE EDITION PENIS EXTENDER?

    Our Deluxe Edition comes with a variety of accessories specifically designed to increase penis size quickly and effectively. The best part is your device can grow and adjust to your size and shape as you progress.

    • Deluxe Edition Penis Extender
    • Hybrid Support Piece
    • Specially Calibrated 3000 Gram Tension Springs
    • 4 Adjustable Comfort Straps
    • 4 Silicone Tube Harnesses
    • 4 Short Memory Foam Pads
    • 4 Long Memory Foam Pads
    • Full Set of Elongation Bars
    • Deluxe Branded Box
    • 6 Cleansing Wipes
    • X4 Labs $50 OFF Gift Voucher
    • 1 Year Device Warranty
    • X4 Labs Extender Instruction Manual
    • X4 Labs Instructional DVD

    ADDITIONAL OPTIONS AND UPGRADES

    infinitefit-quad-support-system

    UPGRADE FOR $49.95

    ADD THE INFINITEFIT SUPPORT SYSTEM FOR ULTIMATE CUSTOMIZATION

    Upgrade your extender to support Double Comfort Straps, Double Velcro Straps, Double Silicone Tubes and any combination of them you choose!

    mini-quad-extender-support

    MINI QUAD EXTENDER SUPPORT

    Specially designed to fit penises as low as 1 inch in length.

    ADD IT FOR $29.95
    wide-girth-extender-base

    WIDE GIRTH EXTENDER BASE

    Fits penises with girths up to 6.5 inches comfortably.

    ADD IT FOR $29.95

    $359.95 $89.99
    3.76 out of 5 stars
    5 stars = 5
    4 stars = 32
    3 stars = 8
    2 stars = 3
    1 stars = 1
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    X4 Labs Premium Edition
    View Product Details

    X4 Labs™ Premium Edition

    4.64 out of 5

    WHY CHOOSE THE PREMIUM EDITION PENIS EXTENDER?

    Our Premium Edition offers excellent comfort and customization. It includes a full set of elongation bars and multiple fastening methods, ensuring that you can wear your device your way. With such great value it is easy to see why this is our top selling penis extender.

    • Premium Edition Penis Extender
    • Hybrid Support Piece
    • Calibrated 3300 Gram Tension Springs
    • 6 Adjustable Comfort Straps
    • 6 Silicone Tube Harnesses
    • 6 Short Memory Foam Pads
    • 6 Long Memory Foam Pads
    • Full Set of Elongation Bars
    • Deluxe Branded Box
    • 6 Cleansing Wipes
    • X4 Labs $50 OFF Gift Voucher
    • 5 Year Device Warranty
    • PenisAccess DVD and Membership
    • X4 Labs Extender Instruction Manual
    • X4 Labs Instructional DVD

    ADDITIONAL OPTIONS AND UPGRADES

    infinitefit-quad-support-system

    UPGRADE FOR $49.95

    ADD THE INFINITEFIT SUPPORT SYSTEM FOR ULTIMATE CUSTOMIZATION

    Upgrade your extender to support Double Comfort Straps, Double Velcro Straps, Double Silicone Tubes and any combination of them you choose!

    mini-quad-extender-support

    MINI QUAD EXTENDER SUPPORT

    Specially designed to fit penises as low as 1 inch in length.

    ADD IT FOR $29.95
    wide-girth-extender-base

    WIDE GIRTH EXTENDER BASE

    Fits penises with girths up to 6.5 inches comfortably.

    ADD IT FOR $29.95

    $539.95 $134.99
    4.64 out of 5 stars
    5 stars = 23
    4 stars = 13
    3 stars = 0
    2 stars = 0
    1 stars = 0
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    X4 Labs Gold Luxury Edition
    View Product Details

    X4 Labs™ Gold Luxury Edition

    4.85 out of 5

    WHY CHOOSE THE GOLD LUXURY EDITION PENIS EXTENDER?

    The Gold Luxury Edition is the most complete package in the industry. It includes components to compliment your device such as a Leather Bound Storage Case and exercise guide and much more. This is the ultimate package, when only the absolute best will do.

    • Gold Edition Penis Extender
    • Hybrid Support Piece
    • 3600 Gram Tension Springs
    • Leather Bound Storage Case
    • 8 Adjustable Comfort Straps
    • 8 Silicone Tube Harnesses
    • 2 Ultra-Fit Velcro Straps
    • 8 Short Memory Foam Pads
    • 8 Long Memory Foam Pads
    • Full Set of Gold Elongation Bars
    • Extender Cleansing Spray
    • Penile Traction Lubricant
    • 8 Cleansing Wipes
    • X4 Labs $50 OFF Gift Voucher
    • 5 Year Device Warranty
    • PenisAccess DVD and Membership
    • X4 Labs Instruction Manual
    • X4 Labs Instructional DVD

    ADDITIONAL OPTIONS AND UPGRADES

    infinitefit-quad-support-system

    UPGRADE FOR $49.95

    ADD THE INFINITEFIT SUPPORT SYSTEM FOR ULTIMATE CUSTOMIZATION

    Upgrade your extender to support Double Comfort Straps, Double Velcro Straps, Double Silicone Tubes and any combination of them you choose!

    mini-quad-extender-support

    MINI QUAD EXTENDER SUPPORT

    Specially designed to fit penises as low as 1 inch in length.

    ADD IT FOR $29.95
    wide-girth-extender-base

    WIDE GIRTH EXTENDER BASE

    Fits penises with girths up to 6.5 inches comfortably.

    ADD IT FOR $29.95

    $999.95 $249.99
    4.85 out of 5 stars
    5 stars = 24
    4 stars = 2
    3 stars = 1
    2 stars = 0
    1 stars = 0
  • -75%
    X4 Labs Peyronies Deluxe Edition
    View Product Details

    X4 Labs™ Peyronies Deluxe Edition

    3.95 out of 5

    WHY CHOOSE THE PEYRONIES DELUXE EDITION PENIS EXTENDER?

    Treat Peyronies Disease effectively and quickly. The X4 Labs™ Deluxe Edition Extender paired with a powerful Vitamin-E Boost™ formula for treatment of penile curvature.

    • Deluxe Edition Penis Extender
    • Hybrid Support Piece
    • Calibrated 3000 Gram
      Tension Springs
    • 3 Months Vitamin E Supplements
    • 2 Adjustable Comfort Straps
    • 2 Silicone Tube Harnesses
    • 2 Long Memory Foam Pads
    • 2 Short Memory Foam Pads
    • Full Set of Elongation Bars
    • Deluxe Branded Box
    • X4 Labs $50 OFF Gift Voucher
    • One Year Device Warranty
    • PenisAccess DVD and Membership
    • X4 Labs Instruction Manual
    • X4 Labs Instructional DVD

    ADDITIONAL OPTIONS AND UPGRADES

    infinitefit-quad-support-system

    UPGRADE FOR $49.95

    ADD THE INFINITEFIT SUPPORT SYSTEM FOR ULTIMATE CUSTOMIZATION

    Upgrade your extender to support Double Comfort Straps, Double Velcro Straps, Double Silicone Tubes and any combination of them you choose!

    mini-quad-extender-support

    MINI QUAD EXTENDER SUPPORT

    Specially designed to fit penises as low as 1 inch in length.

    ADD IT FOR $29.95
    wide-girth-extender-base

    WIDE GIRTH EXTENDER BASE

    Fits penises with girths up to 6.5 inches comfortably.

    ADD IT FOR $29.95

    $499.95 $124.99
    3.95 out of 5 stars
    5 stars = 4
    4 stars = 14
    3 stars = 3
    2 stars = 1
    1 stars = 0
  • -75%
    X4 Labs Peyronies Premium Edition
    View Product Details

    X4 Labs™ Peyronies Premium Edition

    4.14 out of 5

    WHY CHOOSE THE PEYRONIES PREMIUM EDITION PENIS EXTENDER?

    Peyronies Premium Edition is the best value in our Curvature Extender line. Everything you need to customize your device the way you want and experience comfortable penile traction therapy. Also included is a 6 month supply of X4 Labs powerful Vitamin E Supplements and a progress ruler.

    • Premium Edition Penis Extender
    • Hybrid Support Piece
    • Calibrated 3300 Gram Tension Springs
    • 6 Months Vitamin E Supplements
    • 4 Adjustable Comfort Straps
    • 4 Silicone Tube Harnesses
    • 2 Ultra-Fit Velcro Straps
    • Full Set of Elongation Bars
    • 8 Long Memory Foam Pads
    • 8 Short Memory Foam Pads
    • Deluxe Branded Box
    • X4 Labs $50 OFF Gift Voucher
    • 6 Cleansing Wipes
    • Five Year Device Warranty
    • PenisAccess DVD and Membership
    • X4 Labs Extender Instruction
    • X4 Labs Instructional DVD

    ADDITIONAL OPTIONS AND UPGRADES

    infinitefit-quad-support-system

    UPGRADE FOR $49.95

    ADD THE INFINITEFIT SUPPORT SYSTEM FOR ULTIMATE CUSTOMIZATION

    Upgrade your extender to support Double Comfort Straps, Double Velcro Straps, Double Silicone Tubes and any combination of them you choose!

    mini-quad-extender-support

    MINI QUAD EXTENDER SUPPORT

    Specially designed to fit penises as low as 1 inch in length.

    ADD IT FOR $29.95
    wide-girth-extender-base

    WIDE GIRTH EXTENDER BASE

    Fits penises with girths up to 6.5 inches comfortably.

    ADD IT FOR $29.95

    $699.95 $174.99
    4.14 out of 5 stars
    5 stars = 3
    4 stars = 10
    3 stars = 1
    2 stars = 0
    1 stars = 0
  • -75%
    X4 Labs Peyronies Professional Edition
    View Product Details

    X4 Labs™ Peyronies Professional Edition

    4.92 out of 5

    WHY CHOOSE THE PEYRONIES PROFESSIONAL EDITION PENIS EXTENDER?

    The ultimate penile traction therapy package for surgery-free curvature correction. Our Peyronies Pro Extender paired with a 12 month supply of potent Vitamin E supplements and a Penis Pump device. Take a poly-therapy approach to treating Peyronie’s Disease.

    • Pro Edition Gold Penis Extender
    • Hybrid Support Piece
    • Specially Calibrated 3600 Gram
      Tension Springs
    • Leather Bound Storage Case
    • 12 Months Supply Vitamin E
    • 8 Adjustable Comfort Straps
    • 8 Silicone Tube Harnesses
    • 4 Ultra-Fit Velcro Straps
    • 12 Long Memory Foam Pads
    • 12 Short Memory Foam Pads
    • Full Set of Gold Elongation Bars
    • X4 Labs Penis Pump
    • Extender Cleansing Spray
    • X4 Labs $50 OFF Gift Voucher
    • 10 Cleansing Wipes
    • Lifetime Device Warranty
    • PenisAccess DVD and Membership
    • X4 Labs Instruction Manual
    • X4 Labs Instructional DVD

    ADDITIONAL OPTIONS AND UPGRADES

    infinitefit-quad-support-system

    UPGRADE FOR $49.95

    ADD THE INFINITEFIT SUPPORT SYSTEM FOR ULTIMATE CUSTOMIZATION

    Upgrade your extender to support Double Comfort Straps, Double Velcro Straps, Double Silicone Tubes and any combination of them you choose!

    mini-quad-extender-support

    MINI QUAD EXTENDER SUPPORT

    Specially designed to fit penises as low as 1 inch in length.

    ADD IT FOR $29.95
    wide-girth-extender-base

    WIDE GIRTH EXTENDER BASE

    Fits penises with girths up to 6.5 inches comfortably.

    ADD IT FOR $29.95

    $1,299.95 $324.99
    4.92 out of 5 stars
    5 stars = 12
    4 stars = 1
    3 stars = 0
    2 stars = 0
    1 stars = 0