Sunscreen SPF Explained

If this episode of “Speaking of Chemistry” left you wanting more, read the sources below. Speaking of Chemistry is a production of Chemical & Engineering News (C&EN), the weekly magazine of the American Chemical Society.

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FDA’s 2011 proposed rule on SPF 50+

Full text of senators’ 2012 letter to FDA Commissioner on sunscreens

Sun Protection Factor: Meaning and Controversies
An. Bras. Dermatol. 2011, DOI: 10.1590/S0365-05962011000300013

Saving Your Students’ Skin. Undergraduate Experiments that Probe UV Protection by Sunscreens and Sunglasses
J. Chem. Ed. 1998, DOI: 10.1021/ed075p757

Lawmakers Want FDA To Act On Sunscreens
C&EN Volume 92 Issue 22 | p. 19 | Concentrates
Issue Date: June 2, 2014

Sunscreen Delays: It’s been over 10 years since a new sunscreen active ingredient has been approved by FDA.
C&EN Volume 92 Issue 19 | p. 27
Issue Date: May 12, 2014

NEW-WAVE SUNSCREENS: Consumers are still waiting for a reliable measuring system for how well a sunscreen blocks UV-A rays.
C&EN Volume 83 Issue 15 | pp. 18-22
Issue Date: April 11, 2005

What’s That Stuff? Sunscreens
C&EN Volume 80 Issue 25 | p. 27
Issue Date: June 24, 2002

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