Sunscreen Prevents Cancer, Right? Well, It’s Complicated
The American Academy of Dermatology also recommends it for everyone: “Sunscreen use can help prevent skin cancer by protecting you from the sun’s harmful ultraviolet rays. Given the sun’s probable role in most skin cancers, though, it’s surprising that there isn’t stronger evidence that sunscreen prevents all forms of the disease. The analysis found strong evidence that sunscreen prevented squamous cell, but not basal cell carcinomas, most likely because those cancers develop too slowly for studies to detect a trend, said lead author Reid Waldman, a dermatology resident at the University of Connecticut.
Source: undark.org