Jennifer Linder

Jul. 06, 2012

What's Your IQ on SPF?

A look at the science of sunscreen: how it intercepts the sun's rays, whether it blocks vitamin D production, and what SPF really means.

sunscreen, uva, uvb, ultraviolet radiation, sun block, suntan lotion, sun tan lotion, nanoparticles, skin cancer, melanoma, vitamin d, summer, sunshine

AVAILABLE IN ITUNES

Michael Pollan Talks Plants and Food

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FEATURED PLAYLIST

Summer's Here!

BOOKS BY OUR GUESTS

Mystery Box

Picture of the Week: The Sun

Photographer Alan Friedman documents the sun’s many faces using telescopes, filters, cameras, and computer software.

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