Everything you need to know about the Core Nexus, Black Swan, shipping, returns, and more.
How they work, what makes them different, and who they're for.
Core Nexus is the only tool with two distinct tips engineered for two distinct muscles — the psoas and the iliacus. Other tools use identical tips or only address one muscle, leaving half the problem untreated.
The dual-tip design offers focused pressure for each muscle, plus a rotation-based release technique that achieves deeper, more complete relief than static pressure alone.
The iliacus and psoas work together as the "iliopsoas" — your primary hip flexor group. The iliacus attaches inside your hip bone and is almost impossible to stretch or foam roll.
When it's tight, it pulls your pelvis forward (anterior tilt), compresses your lower back, and limits hip mobility. Releasing it is often the missing piece people have been searching for.
No. Lacrosse balls and foam rollers are too round and wide to access the psoas with precision, and they physically cannot reach the iliacus inside the hip bone. They might offer temporary surface relief, but they don't address the root cause.
Core Nexus was specifically engineered — tip shape, angle, size — to reach where those tools can't.
Tight psoas and iliacus muscles have a ripple effect throughout the body. People use Core Nexus for:
Always consult your healthcare provider if you have a medical condition.
There's a difference between productive discomfort and pain. You'll feel pressure similar to a deep tissue massage — most users describe it as "hurts so good." You control the intensity with your body weight.
Start gentle and increase pressure gradually. If you feel sharp pain, ease off. Your body will adapt over the first few sessions.
Most people notice a difference after their very first use — especially when standing up and walking afterward. The hips feel more open and the lower back feels lighter. For lasting change, consistent daily use over 2–3 weeks is recommended. That's when chronic tension patterns start to permanently shift.
Yes. Core Nexus works across all body types because you control the pressure with your own body weight. The ergonomic design accommodates different hip structures based on anatomical research covering a wide range of pelvic geometries.
Black Swan is a 3-in-1 recovery tool: (1) it releases tight suboccipital muscles at the base of your skull — the primary trigger for tension headaches and neck stiffness, (2) it provides gentle cervical traction to decompress your neck without straps or devices, and (3) the swan-head tip precisely targets trigger points in your palms, hands, and forearms for carpal tunnel and grip fatigue relief.
It weighs under 4 ounces, needs no assembly or inflation, and is made in the USA from 3D-printed TPU with a lifetime warranty.
The Black Swan uses gravity-assisted pressure to target the suboccipital muscles at the base of the skull. Lie on your back with the dual occipital cradles positioned under your skull base. The weight of your head provides consistent, controlled pressure. Built-in ramps also provide a gentle gravity-assisted neck stretch. No power, no inflation, no moving parts — just lie down and let gravity do the work. Start with 1–3 minutes and build up to 5-minute sessions.
Most tension headaches originate from tight suboccipital muscles at the skull base. These muscles become chronically shortened from screen time and forward head posture. Black Swan's dual cradle design targets exactly these muscles. Many users report headache relief within the first session — though we always recommend consulting your healthcare provider for chronic headaches.
Flip the Black Swan upside down and the precision swan-head tip provides firm, targeted pressure for palms, wrists, and forearms. The dual forearm channels support your arm while applying steady pressure along the flexor and extensor muscles. Ideal for people who type all day, musicians, rock climbers, golfers, tennis players, and anyone who uses their hands extensively.
Standard neck stretchers provide cervical traction — they stretch the neck by creating space between vertebrae. The Black Swan does something different: it targets the suboccipital muscles directly with precision pressure, plus provides a gentle gravity-assisted neck stretch via its built-in ramps. Additionally, the Black Swan is a 3-in-1 tool — it also works as a hand and forearm recovery device. No neck stretcher offers that combination.
Free! We offer free shipping on all US orders. Typical delivery is 2-7 business days.
Yes! The Core Nexus is FSA/HSA eligible. At checkout, select "Pay with HSA/FSA" powered by Flex. Enter your health spending card details — no Letter of Medical Necessity required.
Currently we ship within the United States. International shipping may be available in the future — sign up for our newsletter to be notified.
30-day money-back guarantee. Use it daily for a full month. If you don't feel a genuine difference, email us at support@nexushealthtools.com. We'll send a prepaid return label and issue a full refund — no questions asked, no restocking fees.
Core Nexus is built to last — medical-grade TPU material, single-piece construction, no screws or parts to break. But if anything ever goes wrong, contact us and we'll replace it. Period.
Every Core Nexus order includes:
Bundle with the Black Swan for $112 total (save $20).
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