X4 Labs™ Clinical Trial FREE Penis Extender Offer

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.
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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.