Meet X3, a revolutionary training system that uses variable resistance to build strength and muscle.
X3 vs. Free Weights
Learn how X3 differs from static weights and traditional resistance bands.
Read the latest reviews from X3 Bar users across the globe.
Variable resistance is a superior stimulus for building muscle and here’s the science to prove it.
X3 is a complete home gym system that uses variable resistance to build muscle faster and more effectively than free weights.
Weight Lifting is a Waste of Time
Dr. John Jaquish and Henry Alkire expose the futility of weightlifting and present a superior, science-backed approach to fitness and nutrition.
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Increase strength and muscle mass with the GH Accelerator, a whole body vibration plate proven to increase HGH levels.
Home Gym Accessories
Accelerate your gains with home gym accessories from Jaquish Biomedical. From whole body vibration plates and resistance band accessories to fitness books and workout log apps, we’ve got you covered.
Shop all of our science-backed fitness and nutrition products to achieve complete body optimization.
12-Week Program Roadmap
Follow the X3 12-week workout program and start building the body of your dreams through variable resistance.
X3 Workout Form
Master every X3 movement to accelerate your results and protect your joints.
Follow Dr. John Jaquish’s recommended nutrition protocol to burn fat, build muscle, and increase energy.
Find answers to all of your questions on X3, nutrition, biohacking, and more.
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X3 Form and Technique
Learn how to perform the resistance band Chest Press exercise with the X3. The X3 Chest Press allows you to produce a tremendous amount of force in the strong range to safely and effectively build strength and muscle.
Learn how to perform the resistance band crossover. The X3 Pec Crossover simulates a cable crossover and helps build the pectoral muscles.
Learn how to perform the band Overhead Press with the X3. This powerful banded shoulder press movement targets and builds the deltoid and trapezius muscles safely and effectively.
Learn how to perform the resistance band Tricep Press exercise with the X3 Bar. This movement targets and builds the tricep muscles better than weights.
Learn how to perform resistance band squats with the X3. The X3 front squat is superior to weighted back squats, as it puts constant tension on the body and causes more stabilization firing.
Learn how to perform resistance band bicep curls with X3. We recommend a drag curl, as it creates higher tension and a harder contraction. The X3 Bar Bicep Curl is a multi-joint movement, which spurs more muscle growth.
Learn how to perform the resistance band Deadlift with the X3. This powerful movement is a mix between the traditional deadlift and the Romanian deadlift.
Build the calves that have always eluded you. Learn how to perform resistance band calf raises with the X3 bar. The X3 Calf Raise recruits and exhausts more muscle than possible with weights.
Learn how to perform the band Split Squat exercise with the X3. This powerful movement isolates the quads and triggers the release of human growth hormone.
Learn how to perform the resistance band bent-over row exercise with the X3 Bar. The X3 Bent Row movement targets the lats and the biceps.
These statements have not been evaluated by the Food and Drug Administration. Our products are not intended to diagnose, treat, cure, or prevent any disease. The results on this page may vary based on individual users and are not guaranteed.