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You've tried the brace. The chin tucks. Maybe even a few chiropractor visits. And the bump at the base of your neck is still there. Here's what nobody told you — your neck hump isn't a posture problem. It's a single muscle called the SCM that locked up from years of screens and desks. And nothing you've been using actually touches it. A cervical spine specialist with 11,000+ sessions broke down exactly why surface-level fixes keep failing — and what it actually takes to release the muscle at home. 10 minutes. Before bed. Hizoo uses 4-prong deep tissue grip plus clinical heat to replicate what a $150/session chiropractor does with their hands. Not vibration. Actual grip-and-release decompression. Try it for 30 days. If you don't see a visible difference in your neckline, send it back.