Spray sunscreens are way worse than we thought: a laboured analysis

Sunscreen sprays seem like the perfect way to reapply sunscreen. But how effective are they? I did some experiments to find out, and the results were pretty shocking.

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0:00 Intro
0:33 Why sprays are tricky
2:33 Where does the spray go?
5:04 More complicatedness: Volatile ingredients
8:49 How much lands on your face?
10:37 What if you try really hard?
14:53 What if you try even harder?
17:21 Even coverage?
18:45 Aerosol sprays are… worse
22:27 What we learned

More details: https://labmuffin.com/do-sunscreen-sp...
Aerosol spray studies: https://www.arpansa.gov.au/sites/defa..., https://www.arpansa.gov.au/sites/defa...

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🙋🏻 I'm Michelle, a chemistry PhD, cosmetic chemist and science educator, 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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