SUNSCREEN in UV скачать в хорошем качестве

SUNSCREEN in UV

How to Make Everything Video:    • How to Stop the Sun from Killing You   Veritasium Video:    • The World in UV   To learn more about CuriosityStream, go to http://curiositystream.com/physicsgirl If you liked this video check out these: What stretching actually does to your body ft. Sofie Dossi    • What stretching actually does to your body...   Bandaids Glow when Opening?! | EVERYDAY MYSTERIES    • Bandaids Glow when Opening?! | EVERYDAY MY...   Creator: Dianna Cowern Videography: Chris Peck, Dianna Cowern, Derek Muller and Eric Birkemeier Editing: Jabril Ashe Thanks to Dan Walsh, and congratulations on his PhD! Thanks to Kyle Kitzmiller and Unicorn Snot Subscribe to Physics Girl for more unusual phenomena and riddles. https://www.youtube.com/subscription_... Help us translate our videos! http://www.youtube.com/timedtext_cs_p... Twitter:   / thephysicsgirl   Facebook:   / thephysicsgirl   Instagram:   / thephysicsgirl   Resources and Further reading: “The Food and Drug Administration (FDA) is proposing to limit the maximum labeled SPF value for over-the-counter (OTC) sunscreen drug products to ‘‘50+.’ https://www.gpo.gov/fdsys/pkg/FR-2011... NYT Article on SPF 50 https://www.nytimes.com/2011/06/15/sc... FDA: Understanding over the counter sunscreens https://www.fda.gov/drugs/resourcesfo... Sunscreen Penetration of Human Skin and Related Keratinocyte Toxicity after Topical Application https://www.karger.com/Article/Abstra... Regulatory Policy Information for the Sunscreen Innovation Act (information on FDA’s rejection of new sunscreen ingredients) https://www.fda.gov/Drugs/GuidanceCom... https://www.ncbi.nlm.nih.gov/pubmed/1... NEW SIA (sunscreen innvation act): https://www.fda.gov/Drugs/GuidanceCom... Schedule of sunscreen lettesr: https://www.fda.gov/Drugs/GuidanceCom... FDA blog safety and effectiveness data: https://blogs.fda.gov/fdavoice/index.... Sunscreen + coral reefs https://www.washingtonpost.com/news/e... ”SPF 100 vs 50 study” https://www.sciencedirect.com/science... Screenshot of “health blog” https://www.huffingtonpost.com.au/201... Overview of suncreen ingredients https://www.ncbi.nlm.nih.gov/pmc/arti... “Titanium dioxide and zinc oxide provide UV protection primarily via absorption of UV radiation and not through significant reflection or scattering.” https://onlinelibrary.wiley.com/doi/a... From the FDA’s website: “Although the protective action of sunscreen products takes place on the surface of the skin, there is evidence that at least some sunscreen active ingredients may be absorbed through the skin and enter the body” https://www.fda.gov/Drugs/ResourcesFo... In 2014, the FDA updated sunscreen ingredient proposal rules https://www.fda.gov/drugs/guidancecom...