The Viral Paradox: Sunscreen Misinformation on TikTok
A comprehensive new study from the University of Alberta and the University of British Columbia has shed light on the complex digital landscape surrounding sunscreen usage on TikTok. By analyzing 971 of the most-viewed videos across five major hashtags—such as #sunscreen and #spf—researchers discovered that the platform is not, as some might fear, entirely overrun with anti-sunscreen sentiment. In fact, nearly 87% of the content analyzed actively promotes the use of sun protection. However, the study reveals a concerning “engagement paradox”: while misinformation is rare, the few videos that argue against sunscreen use gain significantly more traction in terms of likes, shares, and comments than the pro-sunscreen majority. (Credit: © Wisutaporn Jingjit | Dreamstime.com)
The data, which examined content viewed over 2.4 billion times, indicates that the conversation around sunscreen is overwhelmingly driven by aesthetics rather than medical necessity. The primary focus of pro-sunscreen creators remains centered on visible benefits, such as preventing sunburns, treating acne, and slowing the signs of skin aging. Remarkably, only 6.1% of these supportive videos mentioned cancer prevention, despite it being the single most critical health benefit of applying SPF. This prioritization of beauty over health creates a messaging void that leaves viewers vulnerable to the more alarmist, albeit scientifically inaccurate, narratives propagated by a small minority of creators.
On the other side of the spectrum, only 1.6% of the videos studied pushed a purely anti-sunscreen agenda, labeling the product as toxic, hormone-disrupting, or outright unnecessary. Although these videos represent a tiny fraction of the total content, they exhibit a disquieting ability to generate higher levels of audience interaction. Researchers note that this phenomenon aligns with established psychological theories regarding online misinformation: contrarian content that taps into distrust often triggers stronger emotional responses. By leveraging skepticism, these videos cultivate a higher density of engagement, which in turn reinforces their visibility within the social media ecosystem.
The implications for public health are significant. Because many platforms utilize engagement signals—such as likes and shares—to determine which content to promote via their algorithms, the high interaction levels on anti-sunscreen videos may inadvertently amplify harmful myths. While the study did not directly analyze how TikTok’s algorithm chooses to distribute this content, the correlation between misinformation and higher engagement confirms why public health agencies were right to sound an early alarm. When false claims about toxic ingredients or ancestral health are given a megaphone through user interaction, even scientifically illiterate content can begin to appear credible to wider audiences.
The researchers emphasize that this discrepancy between the volume of content and the intensity of engagement poses a unique challenge for health communicators. With over 62% of all sunscreen-related videos featuring brand-specific promotions and discount codes, the platform is heavily saturated with commercial interests that prioritize vanity over clinical education. By largely ignoring the life-saving benefits of skin cancer prevention, popular creators are missing the opportunity to build a robust, science-backed counter-narrative. This leaves a structural opening for misinformation to flourish, as sensationalist claims often outpace factual, dry, or purely preventative health messaging.
Ultimately, the study serves as a critical call to action for both public health officials and medical professionals. Moving forward, the authors argue that simply “drowning out” bad information with more content is insufficient; the messaging must be as engaging and emotionally resonant as the misinformation it seeks to replace. While the researchers note limitations in their study—such as the focus on English-language hashtags and a limited snapshot in time—the findings provide a clear directive: the digital health battle is not just about the supply of information, but about capturing the attention of a skeptical public. Without a strategic shift toward highlighting the tangible, life-saving benefits of sunscreen, health experts risk losing the narrative to more viral, albeit dangerous, myths.