Hip pain, low back pain, sciatica. The Hip Hook reaches the same hidden muscle often driving all of it. Most lower back pain, hip pain, and postural issues trace back to two overlooked muscles: the psoas and the iliacus. These hip flexors sit deep in the pelvis, out of reach for foam rollers, massage balls, and often even hands-on therapy. The Hip Hook (Mark) is the first and only tool designed to precisely target and release both. If you've tried PT, massage, stretching, and the pain keeps coming back, the problem is likely not where you're feeling it. The iliacus and psoas, the deep hip flexors at the center of your body's alignment, are the muscles most conventional tools simply can't reach. The Hip Hook was designed by a physical therapist specifically to target them, replicating a hands-on clinical technique that previously required an office visit. Its precision tip and rotating mechanism apply sustained, targeted pressure to both muscles with control you can feel. In one randomized controlled trial, participants experienced a 27% reduction in pain after a single 90-second session. Because the iliacus and psoas sit at the center of the body's alignment, releasing them is the first step, and often the most impactful one, toward resolving pain that has traveled far from its source.