Key Benefits

• Activates the relaxation side of the nervous system.

• Enhances the body’s recovery and activates self-repair.

• Builds stress resilience and emotional balance.

• Improves cardiovascular, digestive, and immune health.

• Improves sleep scores, focus, and cognitive function.

• Scientifically validated and clinically proven.

Nurosym utilises Auricular Vagal Neuromodulation Therapy (AVNT™), developed by Parasym and validated in clinical studies with world-leading institutions like UCLA and backed by over 50 completed clinical studies. This device sends electrical impulses to the brain via the vagus nerve to help alleviate symptoms of a dysregulated nervous system.

Modern science has discovered that many chronic mental and physical symptoms are linked to a chronically dysregulated nervous system. The nervous system, and one of its largest nerves, the vagus nerve, controls our unconscious functions, from breathing, heart rate, and digestion to energy, calmness, and mood. When the vagus nerve is not functioning properly, the organs and systems of the body fail to work in harmony, leading to poor physical and mental health. By precisely modulating the nervous system through AVNT™, Nurosym helps restore balance and improve health and performance.

With Nurosym, You Can Modulate Your Nervous System To:

Achieve Calm on Demand: Strengthen resilience to anxious states, recover faster from stressful events, and help prevent mood fluctuations.

Build Stress Resilience: Reduce acute stress and build resilience over time.

Activate Self-Repair Mechanisms: Enhance your body’s natural ability to recover and activate self-repair processes.

Relieve Post-Viral Symptoms: Alleviate symptoms such as fatigue and brain fog that may persist following viral infections.

Enhance Cardiovascular Health: Maintain optimal heart rate variability (HRV) and support recovery.

Enable Restorative Sleep: Promote relaxation in critical sleep windows and improvement in sleep scores.

Repair Digestive Health: Enhance digestive function by promoting healthy communication through the gut–brain axis.

Inflammation and Pain Reduction: Reduce inflammation, pain, and discomfort associated with nervous system dysfunction.

Support Cognitive Function: Strengthen cognitive performance and concentration, helping to counteract the effects of ageing.

_CLINICAL TRIALS:

35% anxious states reduction in trials. Build stress resilience, recover faster from stressful events, and help prevent mood swings.

61% improvement in post-viral symptoms. Alleviate symptoms such as fatigue and brain fog that may persist after viral infections.

18% HRV improvement in clinical trials. Enhance cardiovascular health - maintain optimal heart rate variability (HRV), support recovery, and reduce cardiovascular health risks.

31% reduction of sleep disturbances in clinical trials. Enable restorative sleep - Nurosym promotes relaxation and mental stability, facilitating faster sleep onset, minimizing sleep disturbances, and promoting longer deep sleep cycles.

80% improvement in gastrointestinal symptoms during trials. Improve digestive health - Enhance digestive function by promoting healthy communication through the gut-brain axis.

78% reduction in inflammation markers in trials. Use Nurosym to manage inflammation and pain. Reduce discomfort linked to nervous system dysfunction.

32% memory improvement in trials. Support cognitive function, strengthen learning ability and focus to counteract the effects of aging.

Faster sports recovery. Activate your body’s natural self-repair mechanisms and recover faster post-exercise or from other types of strain._

More About Nurosym

-CE Safe Certified Medical Device in Europe.
-FDA Non-Significant Risk (NSR) Designation for various studies in the U.S.
-50+ ongoing third-party (independent led) clinical studies including randomized placebo-controlled trials.
-Recommended by 1000+ licensed healthcare practitioners.
-Research collaboration with 100+ leading health institutions such as NHS, UCLA, University of Chicago Medicine and more.
-30 day money back guarantee.
-Used by Bryan Johnson for HRV optimization, leading longevity expert.
-Featured on Netflix, “Don’t Die” documentary on Bryan Johnson.
-Over 10 years and $10M in R&D to engineer Nurosym.

Nurosym is a certified medical device backed by over $10 million in scientific research with more than 10 partner collaborations, including UCLA and Yale. With over 50 completed clinical studies, it is recognised as the most researched non-invasive vagal neuromodulation system in the world. Certified in the EU (CE) and designated as Non-Significant Risk by the FDA, Nurosym meets the most rigorous safety and quality standards for medical technology.

Developed over a decade and refined through gold standard randomised, placebo-controlled studies, Nurosym uses a patented waveform designed to precisely modulate the vagus nerve via the brainstem. This technology represents the gold standard in scientific neuromodulation, delivering clinically validated therapy while maintaining the highest safety profile. With robust evidence, regulatory approval, and global adoption in research, Nurosym sets a new benchmark for trusted, science-backed neuromodulation.

Nurosym is developed by Parasym, a neurotechnology company on a mission to restore collective health. Recognising the limits of conventional approaches to mental and physical wellbeing, Parasym set out to create safe, accessible technology that works with the body’s natural systems. After years of research and collaboration with leading scientific institutions, the team developed Nurosym — a certified, non-invasive vagal neuromodulation device designed for home use. Guided by their vision that improving the health of our heart and mind can help improve the health of our planet, Parasym also commits 1% of its revenue and time to global wellbeing and environmental initiatives.

With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.

Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.

1. Apply a bit of moisture on the tragus.

2. Wear the earpiece correctly on your left tragus, the cable should go over and behind your ear to keep the electrodes in place.

3. Turn on Nurosym

4. Slowly increase energy level until you feel a light tingling sensation in your ear.

5. Notice how pleasant the sensation of neuromodulation feels. This is a signal that the current is flowing and that your parasympathetic nervous system is activated.

6. Sit or lie down with the device or perform daily activities while Nurosym works to strengthen your parasympathetic nervous system, decrease inflammation, oxidative stress and activate neuroplasticity to help you feel better.

7. Notice the sensations of calmness, relaxation, decreased stress, improved mood, more energy flowing into your body. If you feel the sensation intensifies over time or you stop feeling it, adjust the energy level until you feel a light pleasant tingling sensation again.

8. Continue using Nurosym every day for 30-60 mins a day, preferably in the morning or split between morning after waking up and evening before sleep and enjoy better health & mood.

Contraindications

Nurosym is NOT recommended in the following cases for users:

• Undergone surgery to cut the vagus nerve (cervical vagotomy).

• Diagnosed with severe low resting heart rate.

• Permanent implanted metallic/electronic device or jewellery at close proximity to the ear tragus (that cannot be removed before using Nurosym).

• Pregnant women.

Below are listed situations that are also contraindications unless the user receives a concrete health opinion on the device use by their health professional and is under the supervision of a health professional while using the device.

If you fall under one of these categories, your health professional might advise whether, in your specific case, the device is safe to use, potentially following certain precautions or under specific supervision:

• Users with any active implanted device (including electronic and/or wearable devices) e.g. cochlear implant, cerebral shunts, invasive vagus nerve stimulators, pacemakers or non-active but potentially interacting with the nervous system (e.g. metal implants).

• Users with known severe coronary disease or recent heart attack (within 5 years).

• Paediatric users (children).

*Pregnant women have not been evaluated in scientific studies.
*Both paediatric users and users with pacemakers have been enrolled in scientific studies with Parasym technology, and no device related adverse events or interferences have been observed so far in the scientific setting.

Important safety information:

Nurosym might not be right for you. Before ordering, be sure to read about intended use, warnings, precautions and contraindications.

Consult with your health professional before using any medical intervention.