Sunscreen's Missing UVA Problem
35:08–36:02 · 54s
He recounts how early sunscreens blocked only UVB, leaving skin exposed to wrinkle- and cancer-causing UVA—a costly oversight.


35:08–36:02 · 54s
He recounts how early sunscreens blocked only UVB, leaving skin exposed to wrinkle- and cancer-causing UVA—a costly oversight.
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