Social media sunscreen myths threaten public health and skincare markets

A recent analysis published in PLOS Digital Health reveals that the most widely viewed sunscreen videos on TikTok frequently contain health misinformation. Although 87 percent of nearly 1,000 top videos promoted sun protection, researchers found that inaccurate claims generated the highest levels of user engagement, leading them to conclude that "sunscreen misinformation on TikTok constitutes an area of concern."

Commercial and Regulatory Fallout

This digital distortion has tangible consequences for consumer behavior and the broader cosmetics economy. An American Academy of Dermatology survey indicates that over 16 million adults have reduced or stopped using sunscreen due to online content. As these digital trends cross borders, European skincare brands and regulators face growing pressure to counteract viral falsehoods that erode consumer trust.

Medical professionals note that these myths thrive because consumers often seek justification for avoiding daily sun protection. Dr Spencer Dunaway at The Ohio State University Wexner Medical Center observed that when people dislike a practice, "they’re naturally more willing to believe or even seek out information that tells them they don’t have to do it."

One prevalent falsehood claims that sunscreen causes cancer. Dr Ida Orengo at Baylor College of Medicine stated there are no studies demonstrating an increase in skin cancer associated with sunscreen use. While older chemical filters can reach detectable levels in the bloodstream, experts emphasize this does not equate to danger, and newer ingredients like bemotrizinol minimize absorption.

Concerns about synthetic polymers in daily facial sunscreens also drive consumer hesitation. Dr Dunaway clarified that while ingredients like dimethicone and polyethylene are present, they are too large to be absorbed through intact skin and are common across the entire cosmetic industry. Accidental ingestion of small amounts is similarly considered non-toxic by dermatologists.

Other myths involve vitamin D deficiency and skin tone. While a 2025 scientific review suggested high-SPF sunscreens might hinder vitamin D synthesis, researchers note that only minimal sun exposure is required to maintain healthy levels. Furthermore, Dr Ife J. Rodney emphasized that "everyone, including people with dark skin, can get skin cancer, fine lines, and wrinkles from sun exposure."

For the skincare industry, combating this misinformation is becoming a commercial imperative. Companies may need to invest more heavily in clinical transparency and mineral formulations to reassure a sceptical public. Failure to address these digital myths risks not only public health outcomes but also long-term market stability for sun care manufacturers.