How does Sunscreen Work? What is SPF? How to be safe in the Sun

It’s Summer and the SUN is out to get you! Not really. But it is up to you to protect your skin from harmful UV rays. Time to put on extra sunscreen! Do you know how sunscreen works?

Our special summer video explains the Science of Sunscreen. We break down what kinds of radiation are coming from the Sun (Visible light, Infrared, and Ultraviolet rays), and which of these cause burning, wrinkles, and skin cancer. We describe the difference between Physical Sunscreen and Chemical sunscreens, and discuss what is meant by “Broad Spectrum” protection. We also explain which sunscreens are considered “Reef Safe!”

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We would like to thank our VIP Patrons on Patreon for making this video possible! Our amazing Socratica Friends are:
Tracy Karin Prell
Carlos Araujo
Markie Wait
Martin Stephens
Andrew Mengede
Juan Guillermo Henao
Dongning Zhao
David Borger
and Birds Eat Bees!

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If you want to measure your own UV Index, here’s a UV Meter you can buy on Amazon:
UV Index Meter
http://bit.ly/UV_Meter

Broad Spectrum Sunscreen
https://amzn.to/2N0KSiW

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To support more videos from Socratica, visit

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We also accept Bitcoin! 🙂
Our address is: 1EttYyGwJmpy9bLY2UcmEqMJuBfaZ1HdG9

UV protective shirts
https://amzn.to/2KKCffP

Other Useful links:
EPA UVI index page
http://www.epa.gov/sunwise/uviresources.html
SPF of clothing: https://www.skincancer.org/publications/the-melanoma-letter/summer-2012-vol-30-no-2/clothing

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Hosted by Liliana de Castro
Directed by Michael Harrison
Written and Produced by Kimberly Hatch Harrison

Creative Commons Credits:
Man with Sunscreen
https://en.wikipedia.org/wiki/File:UV_and_Vis_Sunscreen.jpg
Author: Spigget

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