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
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 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.

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.


  • -80%
    extreme-premium
    View Product Details

    X4 Labs™ Extreme Premium Edition

    4.69 out of 5
    Buy Now and Get Your Free Black Edition Penis Extender Cyber Week Bonus. All Available Add-Ons are Included Free with this Edition.

    WHY CHOOSE THE EXTREME PREMIUM EDITION PENIS EXTENDER?

    Our Extreme Premium Edition includes every single item needed to fully adjust and customize your device throughout the enlargement process as well as 3 full months of Sinrex Male Enhancement Supplements and PenisAccess exercises.

    • Red Premium Edition Penis Extender
    • Red Hybrid Support Piece
    • Red Quad Support Piece
    • White Wide Girth Base
    • 3600 Gram Tension Springs
    • 3 Months Sinrex Dual Synergy Supplements
    • 4 Adjustable Comfort Straps
    • 4 Silicone Tube Harnesses
    • 2 Ultra-Fit Velcro Straps
    • 8 Short Memory Foam Pads
    • 6 Long Memory Foam Pads
    • Full Set of Elongation Bars
    • 6 Cleansing Wipes
    • Deluxe Branded Box
    • X4 Labs $50 OFF Gift Voucher
    • 5 Year Device Warranty
    • PenisAccess DVD and Membership
    • X4 Labs Instruction Manual
    • X4 Labs Instructional DVD

    ALL OUR REVOLUTIONARY OPTIONS AND UPGRADES ARE INCLUDED

    infinitefit-quad-support-system

    A $49.95 VALUE
    INCLUDED FREE

    THE INFINITEFIT SUPPORT SYSTEM ALLOWS FOR ULTIMATE CUSTOMIZATION

    This Penis Extender supports 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.

    A $29.95 VALUE
    INCLUDED FREE
    wide-girth-extender-base

    WIDE GIRTH EXTENDER BASE

    Fits penises with girths up to 6.5 inches comfortably.

    A $29.95 VALUE
    INCLUDED FREE
    $899.95 $179.99
    4.69 out of 5 stars
    5 stars = 19
    4 stars = 6
    3 stars = 1
    2 stars = 0
    1 stars = 0
  • -80%
    X4 Labs Anniversary Ultra Edition Penis Extender
    View Product Details

    X4 Labs™ Anniversary Ultra Edition

    4.84 out of 5
    Buy Now and Get Your Free Black Edition Penis Extender Cyber Week Bonus. All Available Add-Ons are Included Free with this Edition.

    WHY CHOOSE THE ANNIVERSARY ULTRA EDITION PENIS EXTENDER?

    If you want an exclusive package with all the bells and whistles, this if the one for you. It features all the innovations and customization we have developed over the course of 11 years and then some. But act fast, our Anniversary Ultra Edition is only available while supplies last.

    • Blue Luxury Edition Penis Extender
    • Blue Hybrid Support Piece
    • Blue Quad Support Piece
    • Blue Wide Girth Base
    • 3600 Gram Tension Springs
    • 5 Adjustable Comfort Straps
    • 5 Silicone Tube Harnesses
    • 2 Ultra-Fit Velcro Straps
    • 8 Short Memory Foam Pads
    • 8 Long Memory Foam Pads
    • Full Set of Elongation Bars
    • X4 Labs Penis Pump
    • Extender Cleansing Spray
    • Penile Traction Lubricant
    • 10 Cleansing Wipes
    • Deluxe Branded Box
    • X4 Labs $50 OFF Gift Voucher
    • Lifetime Device Warranty
    • PenisAccess DVD and Membership
    • X4 Labs Instruction Manual
    • X4 Labs Instructional DVD

    ALL OUR REVOLUTIONARY OPTIONS AND UPGRADES ARE INCLUDED

    infinitefit-quad-support-system

    A $49.95 VALUE
    INCLUDED FREE

    THE INFINITEFIT SUPPORT SYSTEM ALLOWS FOR ULTIMATE CUSTOMIZATION

    This Penis Extender supports 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.

    A $29.95 VALUE
    INCLUDED FREE
    wide-girth-extender-base

    WIDE GIRTH EXTENDER BASE

    Fits penises with girths up to 6.5 inches comfortably.

    A $29.95 VALUE
    INCLUDED FREE
    $974.95 $194.99
    4.84 out of 5 stars
    5 stars = 32
    4 stars = 6
    3 stars = 0
    2 stars = 0
    1 stars = 0
  • -80%
    X4 Labs Deluxe Edition Penis Extender
    View Product Details

    X4 Labs™ Deluxe Edition

    3.65 out of 5
    Not Eligible for Free Black Edition Penis Extender Cyber Week Bonus.

    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
    • 2 Adjustable Comfort Straps
    • 2 Silicone Tube Harnesses
    • 2 Short Memory Foam Pads
    • 2 Long Memory Foam Pads
    • Full Set of Elongation Bars
    • X4 Labs $50 OFF Gift Voucher
    • 1 Year Device Warranty
    • X4 Labs Extender Instruction Manual
    • X4 Labs Instructional DVD
    ATTENTION: The Deluxe Edition is not eligible for the Cyber Week FREE Black Penis Extender Offer. Please purchase one of the Penis Extenders below to get the BONUS.

    X4 Labs™ Gold Luxury EditionX4 Labs™ Premium Edition
    X4 Labs™ Anniversary Ultra EditionX4 Labs™ Extreme Premium Edition


    RECOMMENDED ADD-ONS 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
    $339.95 $67.99
    3.65 out of 5 stars
    5 stars = 5
    4 stars = 32
    3 stars = 8
    2 stars = 3
    1 stars = 3
  • -80%
    X4 Labs Peyronies Deluxe Edition
    View Product Details

    X4 Labs™ Peyronies Deluxe Edition

    3.91 out of 5
    Not Eligible for Free Black Edition Penis Extender Cyber Week Bonus.

    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

    ATTENTION: The Deluxe Edition is not eligible for the Cyber Week FREE Black Penis Extender Offer. Please purchase one of the Penis Extenders below to get the BONUS.

    X4 Labs™ Peyronies Pro EditionX4 Labs™ Peyronies Premium Edition


    RECOMMENDED ADD-ONS 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
    $449.95 $89.99
    3.91 out of 5 stars
    5 stars = 4
    4 stars = 14
    3 stars = 4
    2 stars = 1
    1 stars = 0
  • -80%
    X4 Labs Peyronies Premium Edition
    View Product Details

    X4 Labs™ Peyronies Premium Edition

    4.14 out of 5
    Buy Now and Get a Free Black Edition Penis Extender Cyber Week Bonus.

    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

    RECOMMENDED ADD-ONS 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
    $649.95 $129.99
    4.14 out of 5 stars
    5 stars = 3
    4 stars = 10
    3 stars = 1
    2 stars = 0
    1 stars = 0
  • -80%
    peyronies-pro
    View Product Details

    X4 Labs™ Peyronies Professional Edition

    4.92 out of 5
    Buy Now and Get a Free Black Edition Penis Extender Cyber Week Bonus.

    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. 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
    • 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

    RECOMMENDED ADD-ONS 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
    $1,149.95 $229.99
    4.92 out of 5 stars
    5 stars = 12
    4 stars = 1
    3 stars = 0
    2 stars = 0
    1 stars = 0