The digital landscape has become a double-edged sword for public health, and a new study published in PLOS Digital Health has shed light on a troubling phenomenon occurring on TikTok. Researchers examined nearly 1,000 videos across popular sunscreen-related hashtags to understand how information—and misinformation—is consumed by the masses. While it might seem reassuring that the vast majority of these videos actually promote the use of sunscreen, the data reveals a deeper, more manipulative trend beneath the surface. Content that fearmongers by labeling sunscreen as toxic, carcinogenic, or an unnecessary barrier to natural vitamin D absorption consistently garners far more likes, shares, and comments than the science-backed advice that protects our skin.
This disparity in engagement isn’t just a quirk of the algorithm; it is a direct reflection of how human psychology interacts with sensationalism. The research team noted that shock-provoking content is inherently “viral,” designed to trigger an immediate emotional response that encourages users to propagate the message further. This creates a dangerous feedback loop: as these myths appear more frequently on our feeds, our brains begin to mistake that repetition for credibility. Even if someone knows better deep down, the constant exposure to high-engagement misinformation starts to chip away at their confidence in established dermatological science, potentially swaying public perception toward dangerous health choices.
Perhaps the most surprising finding in the study is the shift in how we perceive sunscreen. While the internet is full of “Get Ready With Me” skincare routines, these videos rarely frame sunscreen as a medical necessity or a life-saving tool in the fight against melanoma. Instead, it is being rebranded as a purely cosmetic product—a step in a beauty regimen meant for aesthetics rather than longevity. The researchers discovered that a staggering 94% of the analyzed videos failed to even mention skin cancer prevention. By shifting the conversation to “looking good,” we are losing sight of the fundamental health objective: protecting our DNA from the sun’s most harmful rays.
This realization brings to light a significant “missed opportunity” for public health communication, especially now that UK melanoma cases have hit record highs. When influencers focus solely on beauty benefits, they leave a vacuum where misinformation can thrive. If the medical community and public health agencies do not step into this space with compelling, engaging, and authoritative content, they will continue to lose the digital ground to those spreading inaccurate, high-engagement fear tactics. The study serves as a wake-up call, suggesting that our current methods of distributing health information are failing to compete with the dramatic, attention-grabbing nature of social media trends.
The urgency of this issue is underscored by real-world health risks, such as the rising rates of melanoma on the neck and scalp—particularly among men, who are three times more likely to develop these cancers than women. In response, private sector initiatives like the “Dan Won’t Burn” campaign have stepped up to fill the void, using public figures to remind people that sunscreen is not just an anti-aging cream, but a vital health intervention. This is essential work, but it highlights a heavier reliance on retailers and athletes to do the heavy lifting of public health education, rather than the systematic, reliable messaging that society needs to combat the influx of online falsehoods.
Moving forward, the challenge for public health agencies is clear: they must increase their surveillance of digital trends to meet misinformation head-on. We are currently navigating a reality where heatwaves are becoming more frequent and severe, and the risks associated with sun exposure are growing, yet our digital diet remains dominated by cosmetic vanity and alarmist myths. If we are to turn the tide, we need to bridge the gap between clinical necessity and digital engagement. We must ensure that the truth—that science-backed sun protection is a non-negotiable health standard—is just as loud, shareable, and engaging as the myths currently capturing our attention on the small screen.