Two Muscles. Two Tips. One Core Nexus.

A broad tip for the psoas. A narrower angled tip for the iliacus. Explore a compact, dual-purpose tool for your mobility routine.

Dr. Steph Dorworth Dr. Jon McHale Dr. Michelle Goñi Dr. David Sosa
Recommended by Clinicians — MDs, DCs & PTs
5.0 from 34 verified reviews
✅ Free Shipping ✅ 30-Day Money-Back Guarantee ✅ Lifetime Warranty
Core Nexus — dual-tip psoas and iliacus release tool
Free Shipping
30-Day Guarantee
Lifetime Warranty
Made in USA
The Design

A Different Shape for Each Hip Flexor

The Problem

Meet the Psoas and Iliacus

The psoas and iliacus are distinct muscles in the hip flexor group, with different locations and shapes.

Core Nexus brings two contact shapes into one compact tool. Product geometry explains its design; it does not identify the cause of symptoms or determine whether a tool is right for you.

  • Two distinct hip flexor muscles
  • Different locations and contact shapes
  • Explore the design and instructions
  • Choose equipment for your own routine
Anatomy diagram showing the psoas and iliacus muscles in the hip flexor group
The Solution

Two Tips in One Tool

Core Nexus has two distinct tips: a broad tip designed for the psoas and a narrower angled tip designed for the iliacus. Two muscles, two tips, one compact tool. Made in the USA from industrial-grade TPU.

  • Broad tip designed for the psoas
  • Narrower angled tip designed for the iliacus
  • Manual positioning and pressure adjustment
  • Compact, single-piece construction
Woman using Core Nexus to release psoas and iliacus hip flexor muscles
See It In Action

See How Simple It Really Is

Follow along and see how easy Core Nexus is to use. A certified massage therapist walks you through it — from placement to release.

How To Place and Use the Core Nexus on the Iliacus and Psoas

"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."

Diane Carlisle, CMT
Diane Carlisle, CMT
Certified Massage Therapist — Featured in Video Above
Practitioner Endorsed

Trusted by Practitioners, Loved by Users

From chiropractors to MDs to physical therapists — clinicians trust Core Nexus for their clients and themselves.

"Absolutely love the Core Nexus Tool! It releases so much tension in my psoas and iliacus — feels like a deep reset every time I use it. Super effective and easy to use, whether it's morning, night, before or after training. It's become a daily essential in my recovery routine. Highly recommend!"

Dr. Michelle Goñi, MD
Dr. Michelle Goñi, MD
Verified Amazon Purchase

"Core Nexus addresses both the psoas and iliacus — nice to have that utility. I prefer the material to the Pso-rite and Hip Hook, which are a lot more aggressive. More attainable for your average person. It's got a nice design that allows you to roll with it and get into those muscles we know can be problematic in people with back tension or hip issues."

Dr. Dan Lang, PT, DPT
Dr. Dan Lang, PT, DPT
Roots Physical Therapy & Performance

"As a doctor of physical therapy, I highly recommend the Core Nexus. This compact all-in-one tool is specifically designed to release the psoas and iliacus muscles, which are often the root cause of lower back and hip tension. It targets these stubborn deep muscles easily and quickly with its unique rotating two-tip design. When I use this, I experience a deep release and it makes me feel fantastic. Just 2 to 3 minutes on each side is all it takes. It's extremely high quality and durable."

Dr. Steph Dorworth, DPT
Dr. Steph Dorworth, DPT
Doctor of Physical Therapy

"I cannot speak highly enough of such an amazing product. For anyone suffering from low back or hip tension, the Core Nexus will specifically hit all of those targeted areas. As a chiropractor and also one who suffers from these conditions, it is a valuable tool and provides significant relief. This device can also be used on multiple areas of the body which is an added bonus. The Core Nexus does not disappoint. You will love it just like I do."

Dr. David Sosa, DC
Dr. David Sosa, DC
Chiropractor — Family Health Centers of San Diego

"The dual-tip concept is genuinely innovative. I see the psoas-iliacus connection contribute to low-back tightness every single day in my practice. Core Nexus gives my clients an effective way to maintain their adjustments at home between visits."

Dr. Jon McHale, DC
Dr. Jon McHale, DC
ChiroFit Roseville
Simple By Design

Get to Know Both Tips

Core Nexus is designed for the psoas and iliacus. Begin with the product instructions and safety guidance; professional advice matters.

Review

Read the safety information and watch the placement guide before using the tool.

Position

The broad tip is designed for the psoas; the narrower angled tip is designed for the iliacus. Follow the corresponding instructions.

Adjust

Use gentle, controlled pressure within your comfort level. Stop if use causes pain or other concerning symptoms.

Core Nexus dual-tip psoas and iliacus release tool — product and in-use views
Flagship Product

Core Nexus

$97

Core Nexus has two distinct tips: a broad tip designed for the psoas and a narrower angled tip designed for the iliacus. Two muscles, two tips, one compact tool. Made in the USA from industrial-grade TPU.

  • Two distinct contact shapes for psoas and iliacus
  • Industrial-grade TPU, single-piece construction
  • Includes step-by-step video guide
  • 30-day guarantee + lifetime warranty + free shipping
Black Swan — precision neck, headache, and suboccipital release tool
Complete Your Recovery

Black Swan

$35

Black Swan is a compact, manual tool with two cradle widths for the base of the skull, surfaces for a gentle neck stretch, and a swan-head tip and channels for hand and forearm work. Made in the USA from industrial-grade TPU; 3.75 oz.

  • Two cradle widths for base-of-skull use
  • Forearm channels for manual pressure work
  • Swan-head tip for hand and palm use
  • Compact and travel-friendly — use it at your desk, on the couch, anywhere
Core Nexus Black Swan
🎁 Best Value — Save $20

The Complete Recovery Kit

Add Black Swan to your Core Nexus order for just $15 (normally $35). Lower back, hips, neck, forearms, hands — every hard-to-reach trouble spot, covered by two tools that go where nothing else can.

Core Nexus $97
Black Swan $35 $15
Bundle Price $112 — Save $20
Get the Bundle — $112

Free shipping · 30-day guarantee · Save $20 on Black Swan

The Story Behind the Tool

Designed from Personal Experience

Bryan developed Core Nexus while exploring equipment for his own mobility routine. His experience informed the design; it does not establish a result for everyone.

Bryan Lee, Founder of Nexus Health Tools

Bryan Lee

Founder & Inventor — Nexus Health Tools

Personal experience inspired a hands-on product design project.

Bryan’s experience led him to explore manual tools for his own routine. A personal story is not evidence that others should change or replace professional care.

He compared different product shapes and wanted to bring two contact shapes into one compact design for the psoas and iliacus.

But Bryan is an inventor at heart — with a background in mechanical engineering and 3D design. He couldn't accept defeat.

Over a year and a half of designing, prototyping, and refining led to Core Nexus: a broad tip designed for the psoas and a narrower angled tip designed for the iliacus, in one tool.

Bryan’s experience is his own. Suitability and results vary; review the safety information and consult your healthcare professional before use.

Core Nexus wasn't created to start a business. It was created because Bryan needed this tool to exist — and once it did, keeping it to himself felt wrong.

Questions

Frequently Asked

Recovery Knowledge

Latest Articles

Evidence-based recovery tips, product guides, and expert insights.

Explore Core Nexus

Two Tips for Your Mobility Routine

Psoas and iliacus. One compact tool. Made in the USA.

30-Day Return Policy

Review eligibility, return shipping, and the return process in our published Return Policy.

Read the return and warranty terms
Lifetime Warranty

Coverage for manufacturing flaws is subject to the published warranty terms, exclusions, and replacement limits.

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Free Shipping

Every order ships free within the US. No minimum, no code, no catch.

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Get Core Nexus — $97

Free shipping · 30-day guarantee · Add Black Swan for just $15