What's the best anti-aging cream available? Which is better - physical or chemical sunscreen? Can you get sunburnt through a glass window? What does SPF even mean?

Get ready for the coming summer by Slip Slop Slapping some knowledge about how sunscreen works and why you should use it!

Electromagnetic radiation spectrum
Diagram of UV absorption in sunscreen molecules
More detailed explanation of how sunscreen works - Lab Muffin
Example of photoaging on a truck driver's face

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