Do you really need to wear sunscreen when you're inside all day? It depends here's what you need to consider. Yes, one Michelle was harmed in the making of this video.

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In this video:
* Why wear sunscreen?
* How much UV is indoors?
* Direct and diffuse UV, and estimating how much you get
* What about glass?
* UV and season, location, time of day
* Individual UV susceptibility
Blog post with more info and references here: https://labmuffin.com/shouldyouwear...
The free sample chapter of The Lab Muffin Guide to Basic Skincare has info on sunscreens: https://labmuffin.com/skin'>https://labmuffin.com/skin

Key references:
Sky view factor model: Utrillas MP et al., Photochem Photobiol 2010, 86, 449456. https://doi.org/10.1111/j.17511097.2...
Glass: Almutawa F et al., Photodermatol Photoimmunol Photomed 2013, 29, 6572. https://doi.org/10.1111/phpp.12022
Australian sun exposure guidelines: https://wiki.cancer.org.au/policy/Pos...
Ethnic skin and aging: Vashi NA et al., J Clin Aesthet Dermatol 2016, 9, 3138. https://www.ncbi.nlm.nih.gov/pmc/arti...
Sunscreen and melanoma in dark skin: https://theconversation.com/sunscreen...
Blog post with more info and references here: https://labmuffin.com/shouldyouwear...

Cancer Council Australia's skin cancer committee chair and Australasian College of Dermatologists president say you probably don't need sunscreen indoors: https://www.abc.net.au/life/doyoune...

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Lab Muffin Beauty Science is a channel by me, Michelle I'm a chemistry PhD and beauty lover, here to explain how beauty products work, debunk myths, and help you make smarter decisions about your skincare, hair and makeup!

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Picking a sunscreen: https://labmuffin.com/skin'>https://labmuffin.com/skin (free sample chapter)
Blog post for this video with more info: https://labmuffin.com/shouldyouwear...

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SKINCARE GUIDE
The Lab Muffin Guide to Basic Skincare is here! Find out more: https://labmuffin.com/skin'>https://labmuffin.com/skin