'Sunscreen Causes Cancer' — Tracing Where the Myth Came From
We followed a single piece of misinformation back to its source.
AAD (2025): 32% of Gen Z scored a 'D' or 'F' on basic sun-protection knowledge.
FDA's Janet Woodcock: absorption of an ingredient does not by itself mean the ingredient is unsafe.
Frequently asked questions
Does sunscreen cause cancer?
No credible evidence shows sunscreen causes cancer; the established science is that UV exposure causes skin cancer and sunscreen helps prevent it. The myth usually stems from misread filter-absorption studies or one-off benzene contamination findings (benzene is a manufacturing impurity, not a sunscreen ingredient).
Is DIY sunscreen safe?
No. Homemade sunscreens can't be reliably tested for SPF or even coverage, and ingredients like coconut oil or zinc stirred into a cream don't disperse evenly enough to protect skin. Dermatologists strongly advise against DIY sunscreen; use a regulated, lab-tested product.
Should I worry about benzene in sunscreen?
Benzene isn't a sunscreen ingredient — it's a contaminant detected in a limited number of products due to manufacturing issues, which prompted recalls. Its presence doesn't mean sunscreen is unsafe to use, and experts stress the proven risk of skipping sun protection is far greater. Buy from reputable brands.
r/30PlusSkinCare: 'Is DIY sunscreen ever a good idea?'
Sources & citations
- NPR, 'Here's the deal on sunscreen misinformation found on TikTok' (2024)
- jamanetwork.com ↗