January 17, 2022

Science

The world of science and technology

SPF Doesn’t Mean What You Think It Means

SPF Doesn't Mean What You Think It Means

SPF seems pretty simple. Find a high number, rub some on your nose, and you’re ready for some sunshine. Unfortunately the science behind it is a little more complicated.

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Sources:

https://www.researchgate.net/profile/Giulio_Pirotta/publication/283515177_An_overview_of_sunscreen_regulations_in_the_world/links/563cdb7508aec6f17dd7e0d6/An-overview-of-sunscreen-regulations-in-the-world.pdf?origin=publication_detail
https://onlinelibrary.wiley.com/doi/full/10.1111/ics.12226
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3514825/
https://www.skincancer.org/prevention/seal-of-recommendation/testing

The Difference Between UVA, UVB, and UVC Rays


https://www.who.int/uv/faq/whatisuv/en/index2.html
https://onlinelibrary.wiley.com/doi/abs/10.1034/j.1600-0781.2003.00007.x
https://www.sciencedirect.com/science/article/pii/S1027811714000494#bib13
https://pubs.rsc.org/en/Content/ArticleLanding/2013/PP/C2PP25127B#!divAbstract