Tampa Bay doctors are urging residents not to toss their sunscreen in favor of viral “solar callus” hacks and DIY oils circulating on social media. On April 10, Moffitt Cancer Center oncologist Dr. Vernon Sondak went on a FOX 13 Tampa Bay segment to push back on the trend, stressing that repeated UV exposure is far more likely to cause damage than offer any protection. Clinicians across the region say the fad is especially dangerous in Florida, where intense UV levels already put residents at higher lifetime risk for skin cancer.
In the interview with FOX 13 Tampa Bay host Laura Moody, Dr. Sondak dismantled the notion that skin can “toughen up” into a protective callus and warned viewers not to ditch broad spectrum SPF. The segment spotlighted short videos that encourage people to skip sunscreen entirely or slather on kitchen oils instead. Local oncologists told the station they are already seeing younger patients show up with concerning lesions and want to stop social media from normalizing unprotected UV exposure.
What the feeds are selling
Short clips on popular platforms have been pushing the idea that steady sun exposure will build a “solar callus” that supposedly shields the skin, or that coconut and other oils are suitable stand ins for SPF. The Skin Cancer Foundation labels the solar callus concept a myth and flags these posts as misinformation. According to the Skin Cancer Foundation, those claims have no scientific basis, and a 2024 survey reported by MedicalXpress found that younger respondents were more likely to believe sun safety myths circulating online.
Why doctors are sounding the alarm
Experts explain that sunlight harms skin DNA, and a tan or thickened skin is a sign of accumulated injury, not a protective shield. According to Cancer statistics, 2026, melanoma remains a serious public health concern, with estimates pointing to hundreds of thousands of cases nationwide each year. Moffitt Cancer Center notes that Florida has some of the highest melanoma diagnosis rates in the country, and local clinicians warn that social media fads could chip away at decades of progress on prevention.
How to protect yourself
Doctors recommend sticking with the boring stuff that actually works. Choose a broad spectrum sunscreen with SPF 30 or higher, reapply every two hours or after swimming, and back it up with UPF clothing, hats and shade during peak sun hours. They also urge people to avoid tanning beds and skip DIY sun protection hacks that have never been tested in a lab. Consistent sunscreen use and routine skin checks remain the best defense.
The Skin Cancer Foundation and local oncologists stress the importance of watching for moles or spots that change in size, color or shape and getting anything suspicious checked early. If you notice a spot that is changing, get it evaluated promptly, since early diagnosis dramatically improves outcomes. Moffitt Cancer Center runs local screening programs such as its Mole Patrol and offers resources on prevention and self checks. The FOX 13 Tampa Bay segment also includes a short list of sun safety tips from Dr. Sondak, and Tampa doctors say those simple measures are a far safer bet than any viral hack.
