Sunscreen Misinformation Is Going Viral on TikTok — And Your Skin Is Paying the Price
Scroll through TikTok for a few minutes and you are almost guaranteed to find someone telling you that sunscreen causes cancer, that you do not actually need it on cloudy days, or that a certain SPF number is nothing more than a marketing gimmick. These claims are compelling, confidently delivered, and often racking up millions of views. There is just one problem: most of them are flat-out wrong. A new study has confirmed what dermatologists have been warning for years — sunscreen misinformation spreads significantly faster and farther on TikTok than accurate, science-backed information does. The consequences for public health could be serious.
What the Study Found
Researchers analyzed hundreds of TikTok videos related to sunscreen and UV protection, categorizing content as either accurate, misleading, or outright false. The findings were striking. Videos containing misinformation consistently outperformed factual videos in terms of views, likes, shares, and overall engagement. The algorithm, it turns out, tends to reward content that is emotionally charged, controversial, or counterintuitive — and nothing fits that description quite like a video claiming that the very product designed to protect you is secretly harming you.
The study also noted that many of the most-viewed misleading videos were created by people with no medical or dermatological credentials. Influencers, wellness advocates, and self-proclaimed "natural living" enthusiasts were among the most frequent spreaders of false sunscreen claims, often presenting their opinions with the same authority as a board-certified skin specialist. Meanwhile, content from actual dermatologists and public health organizations was being seen by a fraction of the audience.
The Most Common Sunscreen Myths Circulating on TikTok
Understanding which specific claims are false is the first step toward protecting yourself from bad advice. Here are some of the most pervasive sunscreen myths currently spreading across social media platforms:
- Sunscreen causes cancer. This is perhaps the most dangerous myth circulating online. It stems from misrepresented or misunderstood studies about certain chemical UV filters. Regulatory bodies including the FDA and the American Academy of Dermatology have repeatedly stated that there is no credible evidence that properly formulated sunscreen causes cancer. Unprotected UV exposure, on the other hand, is a well-established cause of skin cancer.
- You do not need sunscreen on cloudy days. Up to 80 percent of UV rays penetrate cloud cover. Skipping sunscreen because the sky looks overcast is a reliable way to accumulate UV damage without realizing it.
- People with darker skin tones do not need sunscreen. While melanin does provide some natural UV protection, it does not eliminate the risk of UV damage, skin cancer, or hyperpigmentation. Dermatologists recommend broad-spectrum sunscreen for all skin tones.
- Higher SPF numbers are a scam. While SPF 100 does not offer double the protection of SPF 50, higher SPF products do provide incrementally greater protection, especially when sunscreen is not applied in adequate amounts — which is far more common than most people realize.
- Mineral sunscreens are completely safe but chemical sunscreens are toxic. Both types of sunscreen are regulated and considered safe for use. Mineral options containing zinc oxide or titanium dioxide are an excellent choice, but chemical sunscreens are not inherently dangerous. The best sunscreen is the one a person will actually use consistently.
Why Misinformation Spreads So Easily on Short-Form Video Platforms
TikTok's format is uniquely suited to the spread of health misinformation, and this is not accidental. Short videos do not allow time for nuance. A 30-second clip claiming that sunscreen contains hormone-disrupting chemicals feels just as authoritative as a 30-second clip from a dermatologist explaining SPF, but the scary claim tends to generate far more emotional engagement. Fear, outrage, and distrust are powerful drivers of shares and comments, and the platform's recommendation algorithm amplifies whatever generates the most interaction.
There is also the issue of creator incentives. Influencers who build audiences around "natural" or "clean" living often have financial relationships with brands that sell alternatives to conventional sunscreen products, such as facial oils marketed with SPF claims that have not been independently verified. The line between genuine belief and motivated reasoning can be very thin when there is money involved.
What Dermatologists and Public Health Experts Are Saying
Skin cancer is the most commonly diagnosed cancer in the United States, and the American Cancer Society estimates that the vast majority of cases are directly attributable to UV exposure. Against that backdrop, the viral spread of anti-sunscreen content is not a trivial concern. Dermatologists have increasingly taken to social media themselves in an attempt to counter false claims, but they face an uphill battle against content that is algorithmically favored for being provocative rather than accurate.
Experts recommend applying a broad-spectrum sunscreen with at least SPF 30 every day, reapplying every two hours when outdoors, and using about a teaspoon's worth for the face and neck alone — far more than most people typically apply.
How to Evaluate Health Information You Find on Social Media
Being an informed consumer of health content online has never been more important. A few practical habits can help:
- Check whether the creator has verifiable medical or scientific credentials before accepting their health claims at face value.
- Look for sources cited within the video or caption. Legitimate health claims should be traceable to peer-reviewed research or recognized health organizations.
- Search for the same claim on reputable websites such as the American Academy of Dermatology, the Skin Cancer Foundation, or the CDC before acting on it.
- Be especially skeptical of content that frames mainstream medicine as a conspiracy or presents a dramatic reversal of established guidance.
The Bottom Line
Sunscreen remains one of the most effective and well-studied tools available for preventing skin cancer and premature skin aging. The scientific consensus on its safety and efficacy is robust, built on decades of clinical research. TikTok trends come and go, but UV damage accumulates silently over a lifetime. The next time a viral video urges you to ditch your sunscreen, it is worth asking a simple question: whose credentials are behind that advice, and what do they have to gain from your fear?
Protecting your skin is not complicated. Apply broad-spectrum sunscreen daily, reapply regularly, seek shade during peak hours, and trust the dermatologists — not the influencers — when it comes to your long-term health.