What's That Rash? Sunscreen spectacular: UV protection, SPF drama, endocrine disruptors
12 snips
Dec 16, 2025 Unpack the buzz around sunscreen effectiveness and its ingredients, from SPF scandals to endocrine disruptor concerns. Explore how mineral and chemical sunscreens differ, and take a journey through the history of sun protection practices. Learn about the limitations of SPF ratings and their recent testing failures. Get practical sun safety tips, especially for kids, and find out how to maintain a balance with vitamin D levels. Plus, discover important advice on sunscreen expiry and safe application!
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Episode notes
A Brother's Blistered Back
- Norman recalls his brother returning from a holiday with his back blistered from sunburn.
- The story illustrates how attitudes to sun safety have changed over time.
Why Broad‑Spectrum Matters
- Sunscreen blocks both UVB (burning) and UVA (deep, cancer-causing) radiation.
- Broad-spectrum sunscreens protect against both and are therefore important.
Skin Colour As A Social Signal
- Cultural values shaped sun protection historically, with pale skin signalling higher social status.
- Fashion trends later reversed this when tanning became a leisure-status marker.