How the Q-Collar Works
The Q-Collar is worn snugly around the neck and applies light, consistent pressure to the jugular veins. This causes a partial occlusion of the veins and a slight increase in blood volume inside the skull, which is designed to help reduce the brain's movement within the skull during an impact — similar in concept to how a seatbelt helps keep an occupant secure during a car collision. Wearing the Q-Collar has not been shown to reduce blood flow through the carotid arteries.
Research at a Glance
- More than 25 independent laboratory, clinical, and wearability studies conducted over more than a decade
- Research has involved Olympic, professional, and youth athletes, as well as military and tactical personnel
- Findings have been published in peer-reviewed journals, including Neurosurgery and the Journal of Neurotrauma
- The pivotal clinical trial supporting FDA clearance followed hundreds of high school football players over a full season, comparing collar-wearing athletes with matched controls
Key Findings
- Laboratory models have shown reduced markers of neuronal and axonal injury when jugular vein compression was applied during simulated impact
- In season-long imaging studies, a notably higher proportion of collar-wearing athletes showed no significant changes to brain white matter compared with athletes who did not wear a collar
- Independent human performance testing found no statistically significant effect on movement, endurance, or athletic performance
Images are illustrative representations of the type of imaging findings described in published research, not raw study data.
What FDA Clearance Does — and Doesn't — Mean
The Q-Collar became the first device of its kind to receive FDA clearance, in February 2021, following the agency's review of the accumulated research. In the FDA's own words, clearance means the device is authorised to help aid in protecting the brain from effects associated with repeated minor head impacts observed on particular MRI scans — a more specific finding than general claims of brain protection.
Consistent with the FDA's guidance, it's important to understand what this clearance does not mean. The Q-Collar:
- Does not replace helmets or other protective equipment
- Has not been shown to allow a faster return to activities that carry a risk of traumatic brain injury
- Should not be treated as a reason to increase risk-taking or force in play
Australian and New Zealand customers should also be aware that FDA clearance is a United States regulatory status. We recommend reviewing this information alongside your own medical advice, and we are working to ensure all claims on this site reflect the appropriate regulatory position for Australia and New Zealand.
Independent Review of the Evidence
A 2025 independent systematic review of the published research on jugular vein compression collars found consistent evidence of reduced white matter alteration, improved short-term neurocognitive outcomes, and changes in jugular vein and carotid artery measurements. The same review noted that research in this area remains at an early stage, that most funding for existing studies has come from the device's manufacturer, and that more independent research is needed to confirm the technology's role in reducing concussion specifically. We think it's important to share this balanced picture alongside the manufacturer's own research summaries.
Further Reading
For the full detail behind this research, visit Q30 Innovations' own science page and their summary of the FDA review process.