These adhesive products are often marketed as a way to mitigate exposure to electromagnetic fields emitted by mobile devices. The purported function involves neutralizing or absorbing radiation to reduce potential harm to the user. As an example, an individual might apply one of these items to the back of their cellular device, believing it will lessen the electromagnetic energy directed toward their body.
The perceived value stems from concerns regarding the long-term health effects of radiofrequency radiation. Historically, public discourse surrounding electromagnetic fields and health has fueled demand for protective measures. The underlying benefit, as advertised, is a sense of security and a proactive approach to wellness in the face of ubiquitous technology.