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Sharkbanz are the World’s First Shark Deterrent Band

Santa Barbara, CA- “For years, we sat on our surfboards in murky water, wondering what lurked below. We dove reefs and swam helplessly next to 10 foot Sand Tiger Sharks, hoping for the best. The ocean remains the last frontier on our planet, but we couldn’t believe that in the 21st century, no user-friendly solution existed to help ease our mind and offer protection. After a particularly spooky day of nervous laughter and conversations about the weather to avoid the pointy subject, my father and I decided to do something about it.” – NATHAN GARRISON, Co-Founder Sharkbanz


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Sharkbanz’s patented magnetic technology is the result of long term, ongoing scientific studies and testing. Sharkbanz utilize powerful permanent magnets to create an effective shark deterrent that’s always on and requires no batteries or charging. When sharks approach Sharkbanz, they detect the device’s strong electromagnetic field, which provides a sudden sensation that is thousands of times stronger than the signal produced by anything in a shark’s normal food chain. Consequently, sharks are deterred away from Sharkbanz. This cause and effect is analogous to having a bright light suddenly shined in your eyes in a dark room. You would not be hurt, but you would want to turn away.

Sharks have the strongest electroreception (sensitivity to electrical fields) in the animal kingdom. They use this unique capability to navigate at night, when in murky water, and to hunt. Their electroreceptors (Ampullae of Lorenzini) and lateral line canals connect to the seawater by pores on their snouts and other zones of the head. When a fish swims, or even moves its gills, it creates a change in the surrounding geomagnetic field that sharks can detect with these electrically sensitive, gel-filled canals. Since the shark is tuned to be looking for very weak electromagnetic signals from its prey (heartbeats, muscle movements), this organ is highly sensitive. When encountered in the wild, the Sharkbanz field is exponentially greater than anything the animal will have experienced before and highly unpleasant. This tells the shark it is definitely not food.

The ability of sharks and rays to detect weak electrical signals in their surroundings may be one of the greatest factors relating to their survival through the millennia. Every creature, whether a fish or friendly beach goer, generates weak electrical fields while in motion. When sharks are close to potential prey, their electrical sense plays a major role in making the final attack. Actively hunting sharks may have as many as 1500 ampullae around their snout and head, while more sedate species may only have a few hundred.

Sharks use this sense to locate objects nearby, and it becomes vital when they cannot depend on vision alone. In the surf zone, the water is murky, and people and sharks are sharing the same space. Most shark bites occur in these hard-to-see conditions. People are not on shark’s food menus, but when their electrical sense alerts them to potential prey in their area, they are likely to investigate. Remember: sharks don’t have hands, so they use their mouths to feel. This is why the majority of shark bites are “hit-and-run” attacks, meaning the shark bites, then quickly leaves after it recognizes someone isn’t food. Unfortunately, a simple case of mistaken identity can do a lot of damage. Sharkbanz warn curious sharks that the wearer is not food before they bite, reducing the risk of hit and run attacks.

Since its scientific discovery over 10 years ago, the theory of permanent magnets functioning as shark deterrents has been extensively studied, researched and tested on a variety of shark species. Sharkbanz are the result of this R&D. Our company maintains constant contact and collaboration with the founders of this shark-repelling science, Dr. Eric Stroud and Dr. Patrick Rice of Shark Defense Technologies – the leaders in shark repellent technology.

We continue to test Sharkbanz on as many predatory shark species in a variety of scenarios as possible. Successful test demonstrations have already been conducted on Bull Sharks, Hammerheads, Blacktips, Lemon Sharks, Sharpnose Sharks, and Caribbean Reef Sharks. We are scientific and results driven, and other predatory species will be tested. Furthermore, we are continuously working to promote (without influencing) further independent testing of the product by credible and reputable members of the scientific community. We’re not here to offer blanket statements and/or “magic bean” products. Our goal is to improve on Sharkbanz’ effectiveness through strategic R&D, which has been underway since 2013.

The Future
Our goal is to continue to build on our four principles to design products that maximize peace of mind and convenience.
– Effective – We regularly test Sharkbanz technology in real world environments to ensure maximum performance.
– Simple – We like to keep things “simple”, which is why our technology will continue to utilize easy-to-use and convenient shark deterrent methods.
– Affordable – We want every beachgoer to experience peace of mind from Sharkbanz, which is why we will continue to work hard with our manufacturing and distribution partners to offer Sharkbanz for a fair, affordable price.
– Stylish – We believe you shouldn’t have to sacrifice style for safety, which is why we strive to make Sharkbanz wearables that are both comfortable and fashion-forward.

Need to get in touch? Don’t be shy – we don’t bite. We’re always available by email and would enjoy hearing from you. Please write to us with your inquiry at or visit our website at