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FSA/HSA eligible
Purchase Core Nexus with your FSA/HSA card through Flex at checkout.
Core Nexus
Two distinct rotating tips.
Work on your hip flexors with two distinct rotating tips in one compact self-massage tool. Choose your tip, then rotate Core Nexus to fine-tune the angle and placement while you control the pressure.
See where to place each tip in Diane Carlisle’s step-by-step demonstration.
Read their reviews
Bundle the Black Swan neck, forearms, and hand release tool with your Core Nexus — normally $37, yours for just $17. Discount applied at checkout.
Two muscles, two tips, one tool. Core Nexus has a broad tip designed for the psoas and a narrower angled tip designed for the iliacus. Adjust placement and pressure according to the product instructions.
The tool also has uses for the glutes, piriformis, TFL, and glute medius. These are different locations from the psoas and iliacus; consult the corresponding video guide.
Single-piece industrial-grade TPU. Dimensions: 5.5″ × 3.5″ × 5.13″. Weight: under 1 lb. Made in the USA. U.S. patented design.
Core Nexus — U.S. Design Patent No. D1,150,495.
Patent information
The Core Nexus tool, quick-start guidance, and access to the video tutorial library. Any bundle add-on is shown separately in your cart.
Free US shipping. Please read the 30-day return policy and lifetime warranty for eligibility, return shipping, exclusions, and replacement limits.
Suitability, fit, and experience vary. Read the safety information and seek guidance from your healthcare professional before use. This tool is not a substitute for professional assessment or care.
Use gentle, controlled pressure. Stop if use causes pain, numbness, tingling, or other concerning symptoms.
A quick look
Two distinct rotating tips. See the placement and movement.
28 seconds · Sound optional · Key points shown on screen
Perspectives on Core Nexus
The way it moves
“...a nice design that allows you to roll with it...”

Two distinct tips
“The two different tips are excellent...”
Everyday use
“...fits right into my evening routine.”
The Core Nexus design
A different shape for each hip flexor.
A contact angle you can adjust.

Why two tips?
Your hip flexors include the psoas and iliacus. They sit in different locations and have different shapes. That’s why Core Nexus gives you a different contact shape for each.

A shape for each placement
Rotation you control
Core Nexus rotates with your body as you shift your position, letting you adjust the contact angle and pressure.
A simple place to start
Choose your tip. Find your position.
Stay in control of the pressure.
Broad for the psoas. Angled for the iliacus. Start with the placement guide for the area you want to work on.
Follow the demonstration and ease into comfortable pressure. Take your time getting familiar with the placement.
Shift your position to rotate Core Nexus and fine-tune the contact angle. More pressure isn’t the goal.
A step-by-step guide with certified massage therapist Diane Carlisle.
“As a certified massage therapist, I find the Core Nexus to be an exceptional tool for releasing tension in the iliopsoas. This muscle group is often challenging and time-consuming to manipulate, but the Core Nexus can be easily positioned and rotated to provide effective self release.”

See how each tool’s shape affects placement. Start with Core Nexus, then compare the other tools.
0:31
Get a closer look at the broad psoas tip and angled iliacus tip.
0:47
See the curved tip in use, then its size beside Core Nexus.
0:41
Compare the narrow hook with the broader Core Nexus tip.
0:30
See the paired tips and the iliacus-placement demonstration.
Two distinct tips. One Core Nexus.
Choose your Core NexusBeyond your hip flexors
From the psoas and iliacus to the lower back, glutes and hamstrings, explore different placements with the same Core Nexus.
One-piece construction. No assembly or batteries.
See Core Nexus used on the QL, glutes, psoas and iliacus.
FREE COMPANION APP
Meet Nexus Recovery Coach. Learn the placements and build a routine around your Core Nexus or Black Swan.
Free to use. No account needed.
Open on your phone and add it to your Home Screen.
Tap a phone to see the real app screen larger.
The details that matter
Payment options, shipping and support—easy to find before you order.
Use your benefits
Purchase Core Nexus with your FSA/HSA card through Flex at checkout.
Shipping
Free shipping on every US order. Processing: 1–2 business days. Estimated US delivery: 5 business days or less. No minimum—including the $37 Black Swan.
Shipping detailsReturns
Request a return within 30 days of delivery. Keep the original packaging and return the tool in like-new condition. Return shipping is your responsibility unless it arrived defective or damaged.
Full return termsBuilt to last
Manufacturing flaws are covered for the original purchaser, with up to one complete replacement per product. Exclusions apply.
Warranty coverageQuestions before ordering? Contact our team.
A few final questions
Looking for more detail? Visit our complete FAQ.
Built from personal experience and a focus on product design.
Bryan explored psoas and iliacus tools, then spent 18 months engineering, prototyping, and testing Core Nexus. His aim was a compact tool with two distinct contact shapes: one for the psoas and one for the iliacus.
His personal experience inspired the product. It does not predict another person’s experience or replace professional advice.
Core Nexus wasn't created to start a business. It was created because this tool needed to exist.
Read Bryan's full story →